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- Incorporate JCR project into Repository project
- Single configuration entry point for JCR and non-JCR clients (i.e. application-context.xml) - Addition of build-war, incremental-war build targets (no deploy) - Remove build of JCR TCK war file by default git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2777 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
David Caruana
321
source/java/org/alfresco/jcr/item/ValueImpl.java
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321
source/java/org/alfresco/jcr/item/ValueImpl.java
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/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.jcr.item;
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import java.io.InputStream;
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import java.util.Calendar;
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import javax.jcr.PropertyType;
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import javax.jcr.RepositoryException;
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import javax.jcr.Value;
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import javax.jcr.ValueFormatException;
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import org.alfresco.jcr.session.SessionImpl;
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import org.alfresco.jcr.util.JCRProxyFactory;
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import org.alfresco.service.cmr.repository.ContentReader;
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/**
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* Alfresco implementation of JCR Value
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*
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* @author David Caruana
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*/
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public class ValueImpl implements Value
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{
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private enum ValueState {Stream, Value, None};
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private ValueState state = ValueState.None;
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private SessionImpl session;
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private int datatype;
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private Object value;
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private InputStream stream = null;
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private Value proxy;
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/**
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* Constuct
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*
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* @param value value to wrap
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*/
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public ValueImpl(SessionImpl session, int datatype, Object value)
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{
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this.session = session;
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this.datatype = datatype;
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this.value = value;
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}
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/**
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* Create a proxied JCR Value
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*
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* @return the proxied value
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*/
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public Value getProxy()
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{
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if (proxy == null)
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{
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proxy = (Value)JCRProxyFactory.create(this, Value.class, session);
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}
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return proxy;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getString()
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*/
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public String getString() throws ValueFormatException, IllegalStateException, RepositoryException
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{
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isValidState(ValueState.Value);
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String typedValue = session.getTypeConverter().stringValue(getInternalValue());
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value = typedValue;
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enterState(ValueState.Value);
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return typedValue;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getStream()
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*/
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public InputStream getStream() throws IllegalStateException, RepositoryException
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{
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isValidState(ValueState.Stream);
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if (stream == null)
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{
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stream = session.getTypeConverter().streamValue(value);
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}
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enterState(ValueState.Stream);
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return stream;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getLong()
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*/
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public long getLong() throws ValueFormatException, IllegalStateException, RepositoryException
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{
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isValidState(ValueState.Value);
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long typedValue = session.getTypeConverter().longValue(getInternalValue());
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value = typedValue;
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enterState(ValueState.Value);
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return typedValue;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getDouble()
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*/
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public double getDouble() throws ValueFormatException, IllegalStateException, RepositoryException
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{
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isValidState(ValueState.Value);
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double typedValue = session.getTypeConverter().doubleValue(getInternalValue());
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value = typedValue;
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enterState(ValueState.Value);
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return typedValue;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getDate()
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*/
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public Calendar getDate() throws ValueFormatException, IllegalStateException, RepositoryException
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{
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isValidState(ValueState.Value);
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Calendar typedValue = session.getTypeConverter().dateValue(getInternalValue());
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value = typedValue.getTime();
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enterState(ValueState.Value);
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return typedValue;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getBoolean()
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*/
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public boolean getBoolean() throws ValueFormatException, IllegalStateException, RepositoryException
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{
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isValidState(ValueState.Value);
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boolean typedValue = session.getTypeConverter().booleanValue(getInternalValue());
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value = typedValue;
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enterState(ValueState.Value);
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return typedValue;
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}
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/* (non-Javadoc)
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* @see javax.jcr.Value#getType()
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*/
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public int getType()
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{
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return datatype;
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}
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/**
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* Get value
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*
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* @param value the value wrapper to extract from
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* @return the value
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*/
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public static Object getValue(Value value) throws RepositoryException
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{
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Object objValue = null;
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int valueType = value.getType();
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switch(valueType)
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{
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case PropertyType.STRING:
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case PropertyType.NAME:
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case PropertyType.PATH:
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objValue = value.getString();
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break;
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case PropertyType.LONG:
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objValue = value.getLong();
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break;
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case PropertyType.DOUBLE:
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objValue = value.getDouble();
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break;
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case PropertyType.BOOLEAN:
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objValue = value.getBoolean();
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break;
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case PropertyType.DATE:
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objValue = value.getDate();
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break;
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case PropertyType.BINARY:
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objValue = value.getStream();
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break;
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default:
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// Note: just take the internal value
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objValue = ((ValueImpl)value).value;
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break;
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}
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return objValue;
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}
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/**
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* Get typed value
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*
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* @param value the value to extract from
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* @return the wrapped object
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*/
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public static Object getValue(JCRTypeConverter typeConverter, int requiredType, Value value) throws RepositoryException
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{
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Object objValue = null;
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switch(requiredType)
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{
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case PropertyType.STRING:
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objValue = value.getString();
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break;
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case PropertyType.LONG:
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objValue = value.getLong();
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break;
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case PropertyType.DOUBLE:
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objValue = value.getDouble();
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break;
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case PropertyType.BOOLEAN:
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objValue = value.getBoolean();
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break;
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case PropertyType.DATE:
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objValue = value.getDate();
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break;
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case PropertyType.BINARY:
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objValue = value.getStream();
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break;
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case PropertyType.NAME:
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objValue = typeConverter.nameValue(ValueImpl.getValue(value));
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break;
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case PropertyType.PATH:
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objValue = typeConverter.pathValue(ValueImpl.getValue(value));
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break;
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default:
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throw new ValueFormatException("Unsupported Value Type " + requiredType);
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}
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return objValue;
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}
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/**
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* Retrieve Value
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*
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* Note: When retrieving non stream values against a backed stream, the content reader
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* has to be re-created.
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*
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* @return the value
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*/
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private Object getInternalValue()
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{
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if (value instanceof ContentReader && state == ValueState.Value)
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{
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value = ((ContentReader)value).getReader();
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}
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return value;
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}
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/**
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* Check for valid state
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*
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* @param state the state to check
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* @throws IllegalStateException state is not valid
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*/
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private void isValidState(ValueState state)
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{
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if (this.state != ValueState.None && this.state != state)
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{
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throw new IllegalStateException("This value has already been retrieved as a " + state + " and cannot be retrieved as a " + ValueState.Stream + ".");
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}
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}
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/**
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* Enter state
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*
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* @param state the state to enter
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*/
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private void enterState(ValueState state)
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{
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this.state = state;
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}
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@Override
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public boolean equals(Object obj)
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{
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if (obj == this)
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{
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return true;
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}
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if (!(obj instanceof ValueImpl))
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{
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return false;
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}
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ValueImpl other = (ValueImpl)obj;
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// check data type first
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if (datatype != other.datatype)
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{
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return false;
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}
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// handle case where values are content streams
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if (value instanceof ContentReader)
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{
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String thisUrl = ((ContentReader)value).getContentUrl();
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String otherUrl = ((ContentReader)other).getContentUrl();
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return thisUrl.equals(otherUrl);
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}
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// handle other value types
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return value.equals(other.value);
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}
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@Override
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public int hashCode()
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{
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return value.hashCode() * 32 + datatype;
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}
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}
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