svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_dataFile / src-test / org / gvsig / fmap / data / feature / file / ResourceManagerTest.java @ 23878
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2008 IVER T.I. S.A. {{Task}}
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*/
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package org.gvsig.fmap.data.feature.file; |
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import java.security.KeyException; |
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import java.util.Comparator; |
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import java.util.Iterator; |
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import java.util.SortedSet; |
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import java.util.TreeSet; |
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import junit.framework.TestCase; |
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import org.gvsig.fmap.data.DataSet; |
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import org.gvsig.fmap.data.DataManager; |
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import org.gvsig.fmap.data.DataStore; |
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import org.gvsig.fmap.data.exceptions.CloseException; |
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import org.gvsig.fmap.data.exceptions.DataException; |
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import org.gvsig.fmap.data.feature.file.shp.SHPTest; |
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import org.gvsig.fmap.data.impl.DefaultDataManager; |
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import org.gvsig.fmap.data.resource.Resource; |
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import org.gvsig.fmap.data.resource.ResourceManager; |
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import org.gvsig.fmap.data.resource.ResourceNotification; |
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import org.gvsig.fmap.data.resource.impl.DefaultResourceManager; |
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import org.gvsig.fmap.data.resource.spi.AbstractResource; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.observer.Observable; |
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import org.gvsig.tools.observer.Observer; |
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public class ResourceManagerTest extends TestCase { |
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private DataManager dataManager = DefaultDataManager.getManager();
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public class ResourceCloser implements Observer { |
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private int maxOpened = 3; |
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public void update(Observable observable, Object notification) { |
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ResourceNotification rNotification; |
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if (notification instanceof ResourceNotification) { |
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rNotification = (ResourceNotification) notification; |
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} else {
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return;
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} |
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if (rNotification.getType().equals(ResourceNotification.OPENED)) {
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try {
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this.ajustResources();
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} catch (CloseException e) {
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e.printStackTrace(); |
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} |
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} |
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} |
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public void closeAndDisposeAll() throws KeyException, DataException { |
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DefaultResourceManager rManager = DefaultResourceManager.getResourceManager(); |
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Iterator iter = rManager.iterator();
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String name, key;
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while (iter.hasNext()) {
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Resource res = (Resource) iter.next(); |
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name = res.getName(); |
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key = res.getKey(); |
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if (res.isOpen()) {
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res.close(); |
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System.out.println("** closed: " + name + "(" + key + ")"); |
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} |
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rManager.forceRemove(res); |
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System.out.println("** removed (forced): " + name + "(" + key |
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+ ")");
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iter = rManager.iterator(); |
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} |
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System.out.println("** Closed and Disposed all resources"); |
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} |
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public void ajustResources() throws CloseException { |
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SortedSet resources = this.getResourcesOrdered(); |
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if (resources.isEmpty() || resources.size() < this.maxOpened) { |
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return;
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} |
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int opened = this.getOpenedResources(); |
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int toClose = opened - this.maxOpened; |
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if (toClose < 1) { |
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return;
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} |
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System.out.println("** Resources to close: " + toClose); |
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Iterator iter = resources.iterator();
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while (iter.hasNext() && toClose > 0) { |
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Resource res = (Resource) iter.next(); |
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if (res.isOpen()) {
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res.close(); |
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toClose--; |
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System.out.println("** closed: " + res.getName() + "(" |
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+ res.getKey() + ")");
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} |
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} |
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} |
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public Comparator getResourceComparator() { |
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Comparator resourceComparator = new Comparator(){ |
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public int compare(Object arg0, Object arg1) { |
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Resource res0=(Resource) arg0; |
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Resource res1=(Resource) arg1; |
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if (res0.isOpen() != res1.isOpen()){
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if (res0.isOpen()){
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return -1; |
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} else{
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return 1; |
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} |
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} else{
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if (res0.getLastTimeUsed().before(res1.getLastTimeUsed())){
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return -1; |
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} else{
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return 1; |
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} |
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} |
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} |
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}; |
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return resourceComparator;
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} |
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public SortedSet getResourcesOrdered() { |
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SortedSet set = new TreeSet(this.getResourceComparator()); |
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ResourceManager resManager = DefaultResourceManager.getResourceManager(); |
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Iterator iter = resManager.iterator();
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while (iter.hasNext()) {
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set.add(iter.next()); |
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} |
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return set;
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} |
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public void setMaxOpened(int maxOpened) { |
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this.maxOpened = maxOpened;
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} |
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public int getMaxOpened() { |
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return maxOpened;
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} |
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public int getOpenedResources() { |
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ResourceManager resManager = DefaultResourceManager.getResourceManager(); |
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Iterator iter = resManager.iterator();
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int opened = 0; |
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while (iter.hasNext()) {
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if (((Resource) iter.next()).isOpen()) {
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opened++; |
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} |
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} |
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return opened;
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} |
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public void sys_out_resources() { |
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ResourceManager resManager = DefaultResourceManager.getResourceManager(); |
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Iterator iter = resManager.iterator();
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while (iter.hasNext()) {
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Resource res = (Resource) iter.next(); |
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System.out.print("- Resource: " + res.getName() + "(" |
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+ res.getKey() + ") ");
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if (res.isOpen()) {
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System.out.println(" [Open]"); |
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} else {
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System.out.println(" [Close]"); |
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} |
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} |
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} |
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} |
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public void test_manual() { |
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ResourceCloser closer = new ResourceCloser();
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//Nos aseguramos que no hay recursos abiertos
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try {
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closer.closeAndDisposeAll(); |
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} catch (Exception e1) { |
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e1.printStackTrace(); |
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fail(); |
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} |
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org.gvsig.fmap.data.feature.file.dbf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.shp.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dxf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dgn.Register.selfRegister(); |
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DataStore shp = null;
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DataStore shp_bis = null;
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DataStore shpNull = null;
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// DataStore dbf = null;
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// Abrimos y cerrarmos uno (ojo los shp son dos recursos el dbf y el shp)
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try {
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shp = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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try {
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shp.dispose(); |
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} catch (CloseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(0, closer.getOpenedResources());
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// Abrimos dos veces el mismo y comprobamos que solo
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// hay un recurso
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try {
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shp = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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try {
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shp_bis = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp_bis.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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// Abrimos un shp mas, llamamos al 'ajuste del closer' y comprobamos si deja solo 2
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try {
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shpNull = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileGeometryNull)); |
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shpNull.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(4, closer.getOpenedResources());
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closer.setMaxOpened(2);
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try {
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closer.ajustResources(); |
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} catch (CloseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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//comprobamos que todos se puede volver a usar sin
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//problemas
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DataSet coll; |
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try {
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coll = shp.getDataSet(); |
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coll.size(); |
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coll.iterator().next(); |
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coll.dispose(); |
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coll = shp_bis.getDataSet(); |
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coll.size(); |
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coll.iterator().next(); |
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coll.dispose(); |
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coll = shpNull.getDataSet(); |
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coll.size(); |
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coll.iterator().next(); |
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coll.dispose(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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//ahora deberian estar todos abiertos (4)
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closer.sys_out_resources(); |
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assertEquals(4, closer.getOpenedResources());
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//volvemos a comprobar que funciona
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closer.setMaxOpened(2);
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try {
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closer.ajustResources(); |
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} catch (CloseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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try {
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shp.dispose(); |
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shp_bis.dispose(); |
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shpNull.dispose(); |
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} catch (CloseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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} |
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public void test_auto() { |
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ResourceCloser closer = new ResourceCloser();
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//Nos aseguramos que no hay recursos abiertos
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try {
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closer.closeAndDisposeAll(); |
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} catch (Exception e1) { |
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e1.printStackTrace(); |
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fail(); |
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} |
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org.gvsig.fmap.data.feature.file.dbf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.shp.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dxf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dgn.Register.selfRegister(); |
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DataStore shp = null;
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DataStore shp_bis = null;
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DataStore shpNull = null;
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//DataStore dbf = null;
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// A?adimos el 'closer' como observador para que no deje abierta
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// nunca mas de 2 fuentes
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DefaultResourceManager rManager = DefaultResourceManager.getResourceManager(); |
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closer.setMaxOpened(2);
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rManager.addObserver(closer); |
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// Abrimos y cerrarmos uno (ojo los shp son dos recursos el dbf y el shp)
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try {
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shp = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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try {
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shp.dispose(); |
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} catch (CloseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(0, closer.getOpenedResources());
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// Abrimos dos veces el mismo y comprobamos que solo
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// hay un recurso
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try {
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shp = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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try {
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shp_bis = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp_bis.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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// Abrimos un shp mas y comprobamos si deja solo 2
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try {
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shpNull = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileGeometryNull)); |
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shpNull.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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//comprobamos que todos se puede volver a usar sin
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//problemas
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DataSet coll; |
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try {
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coll = shp.getDataSet(); |
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coll.size(); |
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coll.iterator().next(); |
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coll.dispose(); |
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assertEquals(2, closer.getOpenedResources());
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coll = shp_bis.getDataSet(); |
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coll.size(); |
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coll.iterator().next(); |
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coll.dispose(); |
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assertEquals(2, closer.getOpenedResources());
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coll = shpNull.getDataSet(); |
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coll.size(); |
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coll.iterator().next(); |
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coll.dispose(); |
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assertEquals(2, closer.getOpenedResources());
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|
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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} |
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public void test_deadResources() { |
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ResourceCloser closer = new ResourceCloser();
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//Nos aseguramos que no hay recursos abiertos
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try {
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closer.closeAndDisposeAll(); |
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} catch (Exception e1) { |
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e1.printStackTrace(); |
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fail(); |
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} |
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org.gvsig.fmap.data.feature.file.dbf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.shp.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dxf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dgn.Register.selfRegister(); |
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|
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DataStore shp = null;
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|
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ResourceManager rManager = DefaultResourceManager.getResourceManager(); |
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try {
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shp = dataManager.createDataStore(SHPTest |
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.getParams(SHPTest.fileNormal)); |
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shp.getMetadata(); |
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} catch (BaseException e) {
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e.printStackTrace(); |
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fail(); |
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} |
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assertEquals(2, closer.getOpenedResources());
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|
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// Eliminamos la referencia al Store para que se quede 'colgado' el recurso
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shp = null;
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assertEquals(2, closer.getOpenedResources());
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|
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// lanzamos el garbageCollector para que se muera la referencia
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System.gc();
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System.gc();
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System.gc();
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// Cogemos el primer recuros y pedimos su cantidad de referencias
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// esto deber?a de dejar la referencias a 0.
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Iterator iter = rManager.iterator();
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assertEquals(0, ((AbstractResource) iter.next()).getRefencesCount());
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//lanzamos la 'recoleccion' y deber?a de dejar todas las referencia limpias
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// y el manager vacio
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try {
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rManager.collectDeadResources(); |
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} catch (DataException e) {
|
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e.printStackTrace(); |
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fail(); |
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return;
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} |
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|
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assertEquals(0, closer.getOpenedResources());
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|
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assertEquals(0, closer.getResourcesOrdered().size());
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|
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|
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} |
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|
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public void test_deadResourcesThread() { |
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ResourceCloser closer = new ResourceCloser();
|
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|
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//Nos aseguramos que no hay recursos abiertos
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try {
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closer.closeAndDisposeAll(); |
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} catch (Exception e1) { |
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e1.printStackTrace(); |
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fail(); |
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} |
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org.gvsig.fmap.data.feature.file.dbf.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.shp.Register.selfRegister(); |
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org.gvsig.fmap.data.feature.file.dxf.Register.selfRegister(); |
| 529 |
org.gvsig.fmap.data.feature.file.dgn.Register.selfRegister(); |
| 530 |
|
| 531 |
DataStore shp = null;
|
| 532 |
|
| 533 |
ResourceManager rManager = DefaultResourceManager.getResourceManager(); |
| 534 |
|
| 535 |
//Lanzamos el thread
|
| 536 |
|
| 537 |
rManager.startDeadResourceCollectorThread(10); // 1/100 seg |
| 538 |
|
| 539 |
try {
|
| 540 |
shp = dataManager.createDataStore(SHPTest |
| 541 |
.getParams(SHPTest.fileNormal)); |
| 542 |
shp.getMetadata(); |
| 543 |
} catch (BaseException e) {
|
| 544 |
e.printStackTrace(); |
| 545 |
fail(); |
| 546 |
} |
| 547 |
assertEquals(2, closer.getOpenedResources());
|
| 548 |
|
| 549 |
// Eliminamos la referencia al Store para que se quede 'colgado' el recurso
|
| 550 |
shp = null;
|
| 551 |
assertEquals(2, closer.getOpenedResources());
|
| 552 |
|
| 553 |
long t = System.currentTimeMillis(); |
| 554 |
while (System.currentTimeMillis() - t < 50) { |
| 555 |
// lanzamos el garbageCollector para que se muera la referencia
|
| 556 |
System.gc();
|
| 557 |
} |
| 558 |
|
| 559 |
|
| 560 |
// Comprobamos que los recursos ya no existen
|
| 561 |
assertEquals(0, closer.getOpenedResources());
|
| 562 |
|
| 563 |
assertEquals(0, closer.getResourcesOrdered().size());
|
| 564 |
|
| 565 |
rManager.stopDeadResourceCollectorThread(); |
| 566 |
|
| 567 |
} |
| 568 |
|
| 569 |
} |