svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.spi / src / main / java / org / gvsig / fmap / dal / resource / spi / MultiResource.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | |||
23 | /*
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24 | * AUTHORS (In addition to CIT):
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25 | * 2009 {} {{Task}}
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26 | */
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27 | package org.gvsig.fmap.dal.resource.spi; |
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28 | |||
29 | import java.util.ArrayList; |
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30 | import java.util.List; |
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31 | |||
32 | import org.gvsig.fmap.dal.DALLocator; |
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33 | import org.gvsig.fmap.dal.exception.InitializeException; |
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34 | import org.gvsig.fmap.dal.resource.ResourceParameters; |
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35 | import org.gvsig.fmap.dal.resource.exception.AccessResourceException; |
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36 | import org.gvsig.fmap.dal.resource.exception.PrepareResourceException; |
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37 | import org.gvsig.fmap.dal.resource.exception.ResourceException; |
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38 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyChangesException; |
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39 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyCloseException; |
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40 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyDisposeException; |
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41 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyOpenException; |
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42 | import org.slf4j.Logger; |
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43 | import org.slf4j.LoggerFactory; |
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44 | |||
45 | /**
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46 | * Resource implementation which is able to show an unique interface to a group
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47 | * of Resources.
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48 | *
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49 | * @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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50 | */
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51 | public class MultiResource extends AbstractResource { |
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52 | |||
53 | public static final String TYPE_NAME = "multi"; |
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54 | |||
55 | public static final String DESCRIPTION = "Group of multiple resources"; |
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56 | |||
57 | private static final Logger LOG = |
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58 | LoggerFactory.getLogger(MultiResource.class); |
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59 | |||
60 | private List resources = new ArrayList(); |
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61 | |||
62 | // Initially, the first one
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63 | private int defaultResourcePos = 0; |
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64 | |||
65 | /**
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66 | * Creates a new {@link MultiResource} from the given parameters.
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67 | *
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68 | * @param parameters
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69 | * to create the resource from
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70 | * @throws InitializeException
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71 | * if there is an error creating the resource
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72 | */
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73 | public MultiResource(MultiResourceParameters parameters)
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74 | throws InitializeException {
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75 | super(parameters);
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76 | } |
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77 | |||
78 | private List getResources() { |
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79 | return resources;
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80 | } |
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81 | |||
82 | /**
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83 | * Adds a new {@link ResourceProvider} to the list of Resources managed by
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84 | * this group.
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85 | *
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86 | * @param parameters
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87 | * to create the resource from
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88 | * @param defaultResource
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89 | * if the added resource is to be used as the multi resource
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90 | * default one
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91 | * @throws InitializeException
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92 | * if there is an error adding the resource
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93 | */
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94 | public void addResource(ResourceParameters parameters, |
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95 | boolean defaultResource) throws InitializeException { |
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96 | ResourceProvider resourceProvider = |
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97 | ((ResourceManagerProviderServices) DALLocator.getResourceManager()).createResource(parameters); |
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98 | resources.add(resourceProvider); |
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99 | if (defaultResource) {
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100 | defaultResourcePos = resources.size() - 1;
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101 | } |
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102 | } |
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103 | |||
104 | /**
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105 | * Adds a new {@link ResourceProvider} to the list of Resources managed by
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106 | * this group.
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107 | *
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108 | * @param name
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109 | * of the resource to add
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110 | * @param params
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111 | * parameters to create the resource with
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112 | * @param defaultResource
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113 | * if the added resource is to be used as the multi resource
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114 | * default one
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115 | * @throws InitializeException
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116 | * if there is an error adding the resource
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117 | */
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118 | public void addResource(String name, Object[] params, |
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119 | boolean defaultResource) throws InitializeException { |
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120 | ResourceProvider resourceProvider = |
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121 | ((ResourceManagerProviderServices) DALLocator.getResourceManager()).createResource( |
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122 | name, params); |
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123 | resources.add(resourceProvider); |
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124 | if (defaultResource) {
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125 | defaultResourcePos = resources.size() - 1;
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126 | } |
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127 | } |
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128 | |||
129 | public boolean isThis(ResourceParameters parameters) |
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130 | throws ResourceException {
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131 | if (parameters instanceof MultiResourceParameters) { |
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132 | MultiResourceParameters multiParams = |
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133 | (MultiResourceParameters) parameters; |
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134 | return multiParams.getName() != null |
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135 | && multiParams.getName().equals( |
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136 | getMultiResourceParameters().getName()); |
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137 | } |
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138 | |||
139 | return false; |
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140 | } |
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141 | |||
142 | public void notifyChanges() throws ResourceNotifyChangesException { |
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143 | List resources = getResources();
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144 | for (int i = 0; i < resources.size(); i++) { |
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145 | ((ResourceProvider) getResources().get(i)).notifyChanges(); |
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146 | } |
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147 | } |
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148 | |||
149 | public void notifyClose() throws ResourceNotifyCloseException { |
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150 | List resources = getResources();
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151 | for (int i = 0; i < resources.size(); i++) { |
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152 | ((ResourceProvider) getResources().get(i)).notifyClose(); |
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153 | } |
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154 | } |
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155 | |||
156 | public void notifyDispose() throws ResourceNotifyDisposeException { |
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157 | List resources = getResources();
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158 | for (int i = 0; i < resources.size(); i++) { |
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159 | ((ResourceProvider) getResources().get(i)).notifyDispose(); |
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160 | } |
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161 | } |
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162 | |||
163 | public void notifyOpen() throws ResourceNotifyOpenException { |
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164 | List resources = getResources();
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165 | for (int i = 0; i < resources.size(); i++) { |
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166 | ((ResourceProvider) getResources().get(i)).notifyOpen(); |
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167 | } |
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168 | } |
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169 | |||
170 | public void prepare() throws PrepareResourceException { |
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171 | List resources = getResources();
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172 | for (int i = 0; i < resources.size(); i++) { |
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173 | ((ResourceProvider) getResources().get(i)).prepare(); |
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174 | } |
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175 | } |
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176 | |||
177 | public void closeRequest() throws ResourceException { |
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178 | List resources = getResources();
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179 | for (int i = 0; i < resources.size(); i++) { |
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180 | ((ResourceProvider) getResources().get(i)).closeRequest(); |
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181 | } |
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182 | } |
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183 | |||
184 | public Object get() throws AccessResourceException { |
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185 | ResourceProvider defaultResource = getDefaultResource(); |
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186 | if (defaultResource == null) { |
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187 | return null; |
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188 | } else {
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189 | return defaultResource.get();
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190 | } |
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191 | } |
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192 | |||
193 | public Object getData() { |
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194 | ResourceProvider defaultResource = getDefaultResource(); |
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195 | if (defaultResource == null) { |
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196 | return null; |
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197 | } else {
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198 | return defaultResource.getData();
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199 | } |
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200 | } |
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201 | |||
202 | private MultiResourceParameters getMultiResourceParameters() {
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203 | return (MultiResourceParameters) getParameters();
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204 | } |
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205 | |||
206 | public String getName() throws AccessResourceException { |
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207 | StringBuffer buffer =
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208 | new StringBuffer().append("MultiResource ").append( |
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209 | getMultiResourceParameters().getName()).append(":: ");
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210 | List resources = getResources();
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211 | for (int i = 0; i < resources.size(); i++) { |
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212 | buffer.append(((ResourceProvider) resources.get(i)).getName()); |
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213 | if (defaultResourcePos == i) {
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214 | buffer.append(" (default)");
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215 | } |
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216 | if (i < resources.size() - 1) { |
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217 | buffer.append(", ");
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218 | } |
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219 | } |
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220 | return buffer.toString();
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221 | } |
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222 | |||
223 | public String toString() { |
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224 | try {
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225 | return getName();
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226 | } catch (AccessResourceException e) {
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227 | LOG.error("Error getting the resource name", e);
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228 | } |
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229 | return super.toString(); |
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230 | } |
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231 | |||
232 | private ResourceProvider getDefaultResource() {
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233 | if (getResources().size() > 0) { |
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234 | return (ResourceProvider) getResources().get(defaultResourcePos);
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235 | } else {
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236 | return null; |
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237 | } |
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238 | } |
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239 | |||
240 | public void setData(Object data) { |
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241 | ResourceProvider defaultResource = getDefaultResource(); |
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242 | if (defaultResource != null) { |
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243 | defaultResource.setData(data); |
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244 | } |
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245 | } |
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246 | } |