clientnode.java

jsr170接口的java实现。是个apache的开源项目。

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.jackrabbit.rmi.client;

import java.io.InputStream;
import java.rmi.RemoteException;
import java.util.Calendar;

import javax.jcr.Item;
import javax.jcr.ItemVisitor;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.Property;
import javax.jcr.PropertyIterator;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.Value;
import javax.jcr.lock.Lock;
import javax.jcr.nodetype.NodeDefinition;
import javax.jcr.nodetype.NodeType;
import javax.jcr.version.Version;
import javax.jcr.version.VersionHistory;

import org.apache.jackrabbit.rmi.remote.RemoteLock;
import org.apache.jackrabbit.rmi.remote.RemoteNode;
import org.apache.jackrabbit.rmi.remote.RemoteProperty;
import org.apache.jackrabbit.rmi.value.SerialValueFactory;

/**
 * Local adapter for the JCR-RMI
 * {@link org.apache.jackrabbit.rmi.remote.RemoteNode RemoteNode}
 * inteface. This class makes a remote node locally available using
 * the JCR {@link javax.jcr.Node Node} interface.
 *
 * @author Jukka Zitting
 * @see javax.jcr.Node
 * @see org.apache.jackrabbit.rmi.remote.RemoteNode
 */
public class ClientNode extends ClientItem implements Node {

    /** The adapted remote node. */
    private RemoteNode remote;

    /**
     * Creates a local adapter for the given remote node.
     *
     * @param session current session
     * @param remote  remote node
     * @param factory local adapter factory
     */
    public ClientNode(
            Session session, RemoteNode remote, LocalAdapterFactory factory) {
        super(session, remote, factory);
        this.remote = remote;
    }

    /**
     * Returns <code>true</code> without contacting the remote node.
     *
     * {@inheritDoc}
     */
    public boolean isNode() {
        return true;
    }

    /**
     * Calls the {@link ItemVisitor#visit(Node) ItemVisitor.visit(Node)}
     * method of the given visitor. Does not contact the remote node, but
     * the visitor may invoke other methods that do contact the remote node.
     *
     * {@inheritDoc}
     */
    public void accept(ItemVisitor visitor) throws RepositoryException {
        visitor.visit(this);
    }

    /** {@inheritDoc} */
    public Node addNode(String path) throws RepositoryException {
        try {
            return getNode(getSession(), remote.addNode(path));
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public Node addNode(String path, String type) throws RepositoryException {
        try {
            RemoteNode node = remote.addNode(path, type);
            return getNode(getSession(), node);
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public void orderBefore(String src, String dst) throws RepositoryException {
        try {
            remote.orderBefore(src, dst);
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, Value value)
            throws RepositoryException {
        try {
            if (value == null) {
                remote.setProperty(name, (Value) null);
                return null;
            } else {
                RemoteProperty property = remote.setProperty(
                        name, SerialValueFactory.makeSerialValue(value));
                return getFactory().getProperty(getSession(), property);
            }
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, Value[] values)
            throws RepositoryException {
        try {
            if (values == null) {
                remote.setProperty(name, (Value[]) null);
                return null;
            } else {
                Value[] serials = SerialValueFactory.makeSerialValueArray(values);
                RemoteProperty property = remote.setProperty(name, serials);
                return getFactory().getProperty(getSession(), property);
            }
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, String[] strings)
            throws RepositoryException {
        if (strings == null) {
            return setProperty(name, (Value[]) null);
        } else {
            Value[] values = new Value[strings.length];
            for (int i = 0; i < strings.length; i++) {
                values[i] = getSession().getValueFactory().createValue(strings[i]);
            }
            return setProperty(name, values);
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, String value)
            throws RepositoryException {
        if (value == null) {
            return setProperty(name, (Value) null);
        } else {
            return setProperty(name, getSession().getValueFactory().createValue(value));
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, InputStream value)
            throws RepositoryException {
        if (value == null) {
            return setProperty(name, (Value) null);
        } else {
            return setProperty(name, getSession().getValueFactory().createValue(value));
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, boolean value)
            throws RepositoryException {
        return setProperty(name, getSession().getValueFactory().createValue(value));
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, double value)
            throws RepositoryException {
        return setProperty(name, getSession().getValueFactory().createValue(value));
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, long value)
            throws RepositoryException {
        return setProperty(name, getSession().getValueFactory().createValue(value));
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, Calendar value)
            throws RepositoryException {
        if (value == null) {
            return setProperty(name, (Value) null);
        } else {
            return setProperty(name, getSession().getValueFactory().createValue(value));
        }
    }

    /** {@inheritDoc} */
    public Property setProperty(String name, Node value)
            throws RepositoryException {
        if (value == null) {
            return setProperty(name, (Value) null);
        } else {
            return setProperty(name, getSession().getValueFactory().createValue(value));
        }
    }

    /** {@inheritDoc} */
    public Node getNode(String path) throws RepositoryException {
        try {
            return getNode(getSession(), remote.getNode(path));
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public NodeIterator getNodes() throws RepositoryException {
        try {
            return getFactory().getNodeIterator(getSession(), remote.getNodes());
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public NodeIterator getNodes(String pattern) throws RepositoryException {
        try {
            return getFactory().getNodeIterator(getSession(), remote.getNodes(pattern));
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public Property getProperty(String path) throws RepositoryException {
        try {
            RemoteProperty property = remote.getProperty(path);
            return getFactory().getProperty(getSession(), property);
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public PropertyIterator getProperties() throws RepositoryException {
        try {
            return getFactory().getPropertyIterator(getSession(), remote.getProperties());
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public PropertyIterator getProperties(String pattern)
            throws RepositoryException {
        try {
            return getFactory().getPropertyIterator(getSession(), remote.getProperties(pattern));
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public Item getPrimaryItem() throws RepositoryException {
        try {
            return getItem(getSession(), remote.getPrimaryItem());
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public String getUUID() throws RepositoryException {
        try {
            return remote.getUUID();
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public PropertyIterator getReferences() throws RepositoryException {
        try {
            return getFactory().getPropertyIterator(getSession(), remote.getReferences());
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public boolean hasNode(String path) throws RepositoryException {
        try {
            return remote.hasNode(path);
        } catch (RemoteException ex) {
            throw new RemoteRepositoryException(ex);
        }
    }

    /** {@inheritDoc} */
    public boolean hasProperty(String path) throws RepositoryException {