Revision 29956 branches/v2_0_0_prep/libraries/libTools/src/org/gvsig/tools/persistence/impl/AbstractPersistenceManager.java
| AbstractPersistenceManager.java | ||
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package org.gvsig.tools.persistence.impl; |
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import java.io.Reader; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.Map; |
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import org.gvsig.tools.dynobject.DynField; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.persistence.PersistenceException; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistenceValidateExceptions; |
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import org.gvsig.tools.persistence.Persistent; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.impl.validation.DefaultValidationResult; |
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import org.gvsig.tools.persistence.validation.ValidationResult; |
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import org.gvsig.tools.persistence.impl.exception.PersistenceInvalidValidateModeException; |
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import org.gvsig.tools.persistence.impl.exception.PersistenceValidateMissingDefinitionException; |
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import org.gvsig.tools.persistence.impl.exception.PersistenceValidateMissingPropertyException; |
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public abstract class AbstractPersistenceManager implements PersistenceManager {
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public abstract class AbstractPersistenceManager implements |
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ImplementationPersistenceManager {
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protected HashMap definitions = new HashMap(); |
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protected Map alias; |
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public PersistentState getState(Persistent obj) |
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throws PersistenceException {
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PersistentState state = this.createStateInstance(); |
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obj.saveToState(state); |
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return state; |
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} |
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protected int autoValidationMode = PersistenceManager.DISABLED; |
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protected AbstractPersistenceManager() {
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alias = new HashMap(); |
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} |
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public void addAlias(String name, Class aClass) {
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alias.put(name, aClass); |
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} |
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public abstract PersistentState createStateInstance(); |
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public Object create(PersistentState state) throws PersistenceException {
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/* (non-Javadoc) |
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* @see org.gvsig.tools.persistence.impl.ImplementationPersistenceManager#createInstaceOfObject(org.gvsig.tools.persistence.PersistentState) |
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*/ |
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public Persistent createInstaceOfObject(PersistentState state) |
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throws PersistenceException {
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String className = state.getTheClassName(); |
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if (className == null) {
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throw new PersistenceException("The class name is not stored in the state.");
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} |
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try {
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AbstractPersistentState myState = (AbstractPersistentState) state; |
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String className = myState.getTheClassName(); |
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if (className == null) {
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throw new PersistenceException("The class name is not stored in the state.");
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} |
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try {
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Class theClass; |
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Class theClass; |
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Object x = alias.get(className); |
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if (x instanceof Class) {
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theClass = (Class) x; |
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} else if (x instanceof String) {
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theClass = Class.forName((String) x); |
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} else { // x is null
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theClass = Class.forName(className); |
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} |
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Persistent obj = (Persistent) theClass.newInstance(); |
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obj.loadFromState(state); |
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return obj; |
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} catch (ClassNotFoundException e) {
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throw new PersistenceException(e); |
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} catch (InstantiationException e) {
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throw new PersistenceException(e); |
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} catch (IllegalAccessException e) {
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throw new PersistenceException(e); |
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Object x = alias.get(className); |
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if (x instanceof Class) {
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theClass = (Class) x; |
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} else if (x instanceof String) {
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theClass = Class.forName((String) x); |
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} else { // x is null
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theClass = Class.forName(className); |
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} |
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return (Persistent) theClass.newInstance(); |
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} catch (ClassNotFoundException e) {
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throw new PersistenceException(e); |
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} catch (InstantiationException e) {
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throw new PersistenceException(e); |
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} catch (IllegalAccessException e) {
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throw new PersistenceException(e); |
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} |
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} |
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public Persistent create(PersistentState state) throws PersistenceException {
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String className = state.getTheClassName(); |
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if (className == null) {
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throw new PersistenceException("The class name is not stored in the state.");
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} |
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catch (ClassCastException ex) {
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throw new PersistenceException(ex); |
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} |
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Persistent obj = createInstaceOfObject(state); |
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obj.loadFromState(state); |
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return obj; |
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} |
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public void addDefinition(Class persistentClass, DynStruct definition) {
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definitions.put(persistentClass, definition); |
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definitions.put(persistentClass.getName(), definition);
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} |
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public DynStruct getDefinition(Class persistentClass) {
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return (DynStruct) definitions.get(persistentClass); |
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return (DynStruct) definitions.get(persistentClass.getName());
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} |
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/* (non-Javadoc) |
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* @see org.gvsig.tools.persistence.impl.ImplementationPersistenceManager#getDefinition(java.lang.String) |
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*/ |
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public DynStruct getDefinition(String persistentClassName) {
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return (DynStruct) definitions.get(persistentClassName); |
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} |
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public Iterator getPersistentClasses() {
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return definitions.keySet().iterator(); |
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} |
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public void removeDefinition(Class persistentClass) {
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definitions.remove(persistentClass); |
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definitions.remove(persistentClass.getName());
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} |
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public ValidationResult validate(PersistentState state) {
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return new DefaultValidationResult();
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public void validate(PersistentState state) throws PersistenceValidateExceptions {
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validate(state,PersistenceManager.MANDATORY);
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} |
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public PersistentState loadState(Reader reader) throws PersistenceException {
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PersistentState state = createStateInstance(); |
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state.load(reader); |
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return state; |
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public void validate(PersistentState state, int mode) |
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throws PersistenceValidateExceptions {
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if (mode == PersistenceManager.DISABLED){
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return; |
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} |
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PersistenceValidateExceptions exceptionList = new PersistenceValidateExceptions(); |
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PersistentContext context = ((ImplementationPersistentState) state) |
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.getContext(); |
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Iterator statesIter = context.statesIterator(); |
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ImplementationPersistentState curState; |
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DynStruct curDefinition; |
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DynField[] fields; |
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while (statesIter.hasNext()) {
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curState = (ImplementationPersistentState) statesIter.next(); |
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curDefinition = this.getDefinition(curState.getTheClassName()); |
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if (curDefinition == null){
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if (mode == PersistenceManager.MANDATORY){
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exceptionList |
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.add(new PersistenceValidateMissingDefinitionException( |
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curState.getTheClassName())); |
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} |
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continue; |
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} |
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fields = curDefinition.getDeclaredDynFields(); |
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for (int i=0;i<fields.length;i++){
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if (!curState.hasValue(fields[i].getName())) {
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exceptionList |
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.add(new PersistenceValidateMissingPropertyException( |
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curState.getTheClassName(), fields[i] |
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.getName())); |
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} |
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} |
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} |
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if (exceptionList.size() > 0) {
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throw exceptionList; |
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} |
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} |
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public int getAutoValidation() {
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return DISABLED;
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return autoValidationMode;
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} |
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public void setAutoValidation(int validationMode) throws PersistenceException {
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if (validationMode!=DISABLED) {
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throw new PersistenceException("Validation not implemented");
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switch (validationMode) {
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case DISABLED: |
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case MANDATORY: |
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case MANDATORY_IF_DECLARED: |
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autoValidationMode = validationMode; |
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break; |
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default: |
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throw new PersistenceInvalidValidateModeException(validationMode); |
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} |
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} |
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public PersistentState getState(Persistent obj) |
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throws PersistenceException, PersistenceValidateExceptions {
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PersistentContext context = new DefaultPersistentContext(this); |
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ImplementationPersistentState state = createState(obj, context); |
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context.setRoot(state.getId()); |
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this.validate(state, this.autoValidationMode); |
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return state; |
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} |
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/* (non-Javadoc) |
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* @see org.gvsig.tools.persistence.impl.ImplementationPersistenceManager#createState(org.gvsig.tools.persistence.Persistent, org.gvsig.tools.persistence.impl.PersistentContext) |
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*/ |
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public ImplementationPersistentState createState(Persistent theOriginal, |
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PersistentContext context) |
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throws PersistenceException {
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ImplementationPersistentState state = createPersistentStateInstance(context); |
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state.setTheClassName(theOriginal.getClass().getName()); |
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context.addReference(theOriginal, state); |
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theOriginal.saveToState(state); |
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return state; |
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} |
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/* (non-Javadoc) |
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* @see org.gvsig.tools.persistence.impl.ImplementationPersistenceManager#createPersistentStateInstance(org.gvsig.tools.persistence.impl.PersistentContext) |
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*/ |
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public abstract ImplementationPersistentState createPersistentStateInstance( |
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PersistentContext context); |
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} |
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