org.apache.jackrabbit.spi2davex.RepositoryServiceImpl Maven / Gradle / Ivy
/*
* 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.spi2davex;
import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.jcr.Credentials;
import javax.jcr.ItemNotFoundException;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.URI;
import org.apache.commons.httpclient.URIException;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
import org.apache.commons.httpclient.methods.multipart.Part;
import org.apache.jackrabbit.JcrConstants;
import org.apache.jackrabbit.commons.json.JsonParser;
import org.apache.jackrabbit.commons.json.JsonUtil;
import org.apache.jackrabbit.commons.webdav.JcrRemotingConstants;
import org.apache.jackrabbit.commons.webdav.ValueUtil;
import org.apache.jackrabbit.spi.Batch;
import org.apache.jackrabbit.spi.ItemId;
import org.apache.jackrabbit.spi.ItemInfo;
import org.apache.jackrabbit.spi.Name;
import org.apache.jackrabbit.spi.NodeId;
import org.apache.jackrabbit.spi.Path;
import org.apache.jackrabbit.spi.PropertyId;
import org.apache.jackrabbit.spi.PropertyInfo;
import org.apache.jackrabbit.spi.QValue;
import org.apache.jackrabbit.spi.RepositoryService;
import org.apache.jackrabbit.spi.SessionInfo;
import org.apache.jackrabbit.spi.Tree;
import org.apache.jackrabbit.spi.commons.ItemInfoCacheImpl;
import org.apache.jackrabbit.spi.commons.conversion.NamePathResolver;
import org.apache.jackrabbit.spi.commons.conversion.PathResolver;
import org.apache.jackrabbit.spi.commons.identifier.IdFactoryImpl;
import org.apache.jackrabbit.spi.commons.iterator.Iterators;
import org.apache.jackrabbit.spi.commons.name.NameConstants;
import org.apache.jackrabbit.spi.commons.name.NameFactoryImpl;
import org.apache.jackrabbit.spi.commons.name.PathBuilder;
import org.apache.jackrabbit.spi.commons.name.PathFactoryImpl;
import org.apache.jackrabbit.spi.commons.tree.AbstractTree;
import org.apache.jackrabbit.spi.commons.value.ValueFormat;
import org.apache.jackrabbit.spi2dav.ExceptionConverter;
import org.apache.jackrabbit.spi2dav.ItemResourceConstants;
import org.apache.jackrabbit.util.Text;
import org.apache.jackrabbit.webdav.DavConstants;
import org.apache.jackrabbit.webdav.DavException;
import org.apache.jackrabbit.webdav.DavServletResponse;
import org.apache.jackrabbit.webdav.MultiStatusResponse;
import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
import org.apache.jackrabbit.webdav.header.IfHeader;
import org.apache.jackrabbit.webdav.property.DavProperty;
import org.apache.jackrabbit.webdav.property.DavPropertyName;
import org.apache.jackrabbit.webdav.property.DavPropertyNameSet;
import org.apache.jackrabbit.webdav.property.DavPropertySet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* RepositoryServiceImpl...
*/
public class RepositoryServiceImpl extends org.apache.jackrabbit.spi2dav.RepositoryServiceImpl {
private static Logger log = LoggerFactory.getLogger(RepositoryServiceImpl.class);
private static final String PARAM_DIFF = ":diff";
private static final String PARAM_COPY = ":copy";
private static final String PARAM_CLONE = ":clone";
private static final char SYMBOL_ADD_NODE = '+';
private static final char SYMBOL_MOVE = '>';
private static final char SYMBOL_REMOVE = '-';
private static final char SYMBOL_SET_PROPERTY = '^';
private static final String ORDER_POSITION_LAST = "#last";
private static final String ORDER_POSITION_BEFORE = "#before";
private static final DavPropertyName JCR_TYPE =
DavPropertyName.create(ItemResourceConstants.JCR_TYPE_LN, ItemResourceConstants.NAMESPACE);
private static final DavPropertyName JCR_LENGTH =
DavPropertyName.create(ItemResourceConstants.JCR_LENGTH_LN, ItemResourceConstants.NAMESPACE);
private static final DavPropertyName JCR_LENGTHS =
DavPropertyName.create(ItemResourceConstants.JCR_LENGTHS_LN, ItemResourceConstants.NAMESPACE);
private static final DavPropertyName JCR_GET_STRING =
DavPropertyName.create(ItemResourceConstants.JCR_GET_STRING_LN, ItemResourceConstants.NAMESPACE);
private static final DavPropertyNameSet LAZY_PROPERTY_NAME_SET = new DavPropertyNameSet(){{
add(JCR_TYPE);
add(JCR_LENGTH);
add(JCR_LENGTHS);
add(JCR_GET_STRING);
}};
/**
* base uri to the extended jcr-server that can handle the GET and POST
* (or PATCH) requests sent by this service implementation.
*/
private final String jcrServerURI;
/**
* the name of the default workspace or null.
* NOTE: with JCR-1842 the RepositoryConfiguration doesn't provide the
* default workspace name any more. In order to provide backwards
* compatibility with jcr-server < 1.5.0 the workspace name can be
* passed to the RepositoryService implementation.
*/
private final String defaultWorkspaceName;
/**
* The configuration map used to determine the maximal depth of child
* items to be accessed upon a call to {@link #getNodeInfo(SessionInfo, NodeId)}.
*/
private final BatchReadConfig batchReadConfig;
private final Map qvFactories = new HashMap();
/**
* Same as {@link #RepositoryServiceImpl(String, String, BatchReadConfig, int, int))}
* using null workspace name, {@link ItemInfoCacheImpl#DEFAULT_CACHE_SIZE)}
* as size for the item cache and {@link #MAX_CONNECTIONS_DEFAULT} for the
* maximum number of connections on the client.
*
* @param jcrServerURI The server uri.
* @param batchReadConfig The batch read configuration.
* @throws RepositoryException If an exception occurs.
*/
public RepositoryServiceImpl(String jcrServerURI, BatchReadConfig batchReadConfig) throws RepositoryException {
this(jcrServerURI, null, batchReadConfig, ItemInfoCacheImpl.DEFAULT_CACHE_SIZE);
}
/**
* Same as {@link #RepositoryServiceImpl(String, String, BatchReadConfig, int, int))}
* using {@link #MAX_CONNECTIONS_DEFAULT} for the maximum number of
* connections on the client.
*
* @param jcrServerURI The server uri.
* @param defaultWorkspaceName The default workspace name.
* @param batchReadConfig The batch read configuration.
* @param itemInfoCacheSize The size of the item info cache.
* @throws RepositoryException If an exception occurs.
*/
public RepositoryServiceImpl(String jcrServerURI, String defaultWorkspaceName,
BatchReadConfig batchReadConfig, int itemInfoCacheSize) throws RepositoryException {
this(jcrServerURI, defaultWorkspaceName, batchReadConfig, itemInfoCacheSize, MAX_CONNECTIONS_DEFAULT);
}
/**
* Creates a new instance of this repository service.
*
* @param jcrServerURI The server uri.
* @param defaultWorkspaceName The default workspace name.
* @param batchReadConfig The batch read configuration.
* @param itemInfoCacheSize The size of the item info cache.
* @param maximumHttpConnections maximumHttpConnections A int >0 defining
* the maximum number of connections per host to be configured on
* {@link org.apache.commons.httpclient.params.HttpConnectionManagerParams#setDefaultMaxConnectionsPerHost(int)}.
* @throws RepositoryException If an exception occurs.
*/
public RepositoryServiceImpl(String jcrServerURI, String defaultWorkspaceName,
BatchReadConfig batchReadConfig, int itemInfoCacheSize,
int maximumHttpConnections) throws RepositoryException {
super(jcrServerURI, IdFactoryImpl.getInstance(), NameFactoryImpl.getInstance(),
PathFactoryImpl.getInstance(), new QValueFactoryImpl(), itemInfoCacheSize, maximumHttpConnections);
try {
URI repositoryUri = computeRepositoryUri(jcrServerURI);
this.jcrServerURI = repositoryUri.toString();
} catch (URIException e) {
throw new RepositoryException(e);
}
this.defaultWorkspaceName = defaultWorkspaceName;
if (batchReadConfig == null) {
this.batchReadConfig = new BatchReadConfig() {
public int getDepth(Path path, PathResolver resolver) {
return 0;
}
};
} else {
this.batchReadConfig = batchReadConfig;
}
}
private Path getPath(ItemId itemId, SessionInfo sessionInfo) throws RepositoryException {
return getPath(itemId, sessionInfo, sessionInfo.getWorkspaceName());
}
private Path getPath(ItemId itemId, SessionInfo sessionInfo, String workspaceName) throws RepositoryException {
if (itemId.denotesNode()) {
Path p = itemId.getPath();
String uid = itemId.getUniqueID();
if (uid == null) {
return p;
} else {
NamePathResolver resolver = getNamePathResolver(sessionInfo);
String uri = super.getItemUri(itemId, sessionInfo, workspaceName);
String rootUri = getRootURI(sessionInfo);
String jcrPath;
if (uri.startsWith(rootUri)) {
jcrPath = uri.substring(rootUri.length());
} else {
log.warn("ItemURI " + uri + " doesn't start with rootURI (" + rootUri + ").");
// fallback:
// calculated uri does not start with the rootURI
// -> search /jcr:root and start sub-string behind.
String rootSegment = Text.escapePath(JcrRemotingConstants.ROOT_ITEM_RESOURCEPATH);
jcrPath = uri.substring(uri.indexOf(rootSegment) + rootSegment.length());
}
jcrPath = Text.unescape(jcrPath);
return resolver.getQPath(jcrPath);
}
} else {
PropertyId pId = (PropertyId) itemId;
Path parentPath = getPath(pId.getParentId(), sessionInfo, workspaceName);
return getPathFactory().create(parentPath, pId.getName(), true);
}
}
private String getURI(Path path, SessionInfo sessionInfo) throws RepositoryException {
StringBuilder sb = new StringBuilder(getRootURI(sessionInfo));
String jcrPath = getNamePathResolver(sessionInfo).getJCRPath(path);
sb.append(Text.escapePath(jcrPath));
return sb.toString();
}
private String getURI(ItemId itemId, SessionInfo sessionInfo) throws RepositoryException {
Path p = getPath(itemId, sessionInfo);
if (p == null) {
return super.getItemUri(itemId, sessionInfo);
} else {
return getURI(p, sessionInfo);
}
}
private String getRootURI(SessionInfo sessionInfo) {
StringBuilder sb = new StringBuilder(getWorkspaceURI(sessionInfo));
sb.append(Text.escapePath(JcrRemotingConstants.ROOT_ITEM_RESOURCEPATH));
return sb.toString();
}
private String getWorkspaceURI(SessionInfo sessionInfo) {
StringBuilder sb = new StringBuilder();
sb.append(jcrServerURI);
sb.append(Text.escape(sessionInfo.getWorkspaceName()));
return sb.toString();
}
/**
* @see RepositoryService#getQValueFactory()
*/
public QValueFactoryImpl getQValueFactory(SessionInfo sessionInfo) throws RepositoryException {
QValueFactoryImpl qv;
if (qvFactories.containsKey(sessionInfo)) {
qv = qvFactories.get(sessionInfo);
} else {
ValueLoader loader = new ValueLoader(getClient(sessionInfo));
qv = new QValueFactoryImpl(getNamePathResolver(sessionInfo), loader);
qvFactories.put(sessionInfo, qv);
}
return qv;
}
//--------------------------------------------------< RepositoryService >---
// exists && getPropertyInfo -> to be done
// getNodeInfo: omitted for requires list of 'references'
/**
* If the specified workspaceName the default workspace name
* is used for backwards compatibility with jackrabbit-jcr-server < 1.5.0
*
* @see RepositoryService#obtain(Credentials, String)
*/
@Override
public SessionInfo obtain(Credentials credentials, String workspaceName)
throws RepositoryException {
// for backwards compatibility with jcr-server < 1.5.0
String wspName = (workspaceName == null) ? defaultWorkspaceName : workspaceName;
return super.obtain(credentials, wspName);
}
/**
* If the specified workspaceName the default workspace name
* is used for backwards compatibility with jackrabbit-jcr-server < 1.5.0
*
* @see RepositoryService#obtain(SessionInfo, String)
*/
@Override
public SessionInfo obtain(SessionInfo sessionInfo, String workspaceName)
throws RepositoryException {
// for backwards compatibility with jcr-server < 1.5.0
String wspName = (workspaceName == null) ? defaultWorkspaceName : workspaceName;
return super.obtain(sessionInfo, wspName);
}
/**
* @see RepositoryService#dispose(SessionInfo)
*/
@Override
public void dispose(SessionInfo sessionInfo) throws RepositoryException {
super.dispose(sessionInfo);
// remove the qvalue factory created for the given SessionInfo from the
// map of valuefactories.
qvFactories.remove(sessionInfo);
}
/**
* @see RepositoryService#getItemInfos(SessionInfo, ItemId)
*/
@Override
public Iterator getItemInfos(SessionInfo sessionInfo, ItemId itemId) throws ItemNotFoundException, RepositoryException {
if (!itemId.denotesNode()) {
PropertyInfo propertyInfo = getPropertyInfo(sessionInfo, (PropertyId) itemId);
return Iterators.singleton(propertyInfo);
} else {
NodeId nodeId = (NodeId) itemId;
Path path = getPath(itemId, sessionInfo);
String uri = getURI(path, sessionInfo);
int depth = batchReadConfig.getDepth(path, this.getNamePathResolver(sessionInfo));
GetMethod method = new GetMethod(uri + "." + depth + ".json");
try {
int statusCode = getClient(sessionInfo).executeMethod(method);
if (statusCode == DavServletResponse.SC_OK) {
if (method.getResponseContentLength() == 0) {
// no JSON response -> no such node on the server
throw new ItemNotFoundException("No such item " + nodeId);
}
NamePathResolver resolver = getNamePathResolver(sessionInfo);
NodeInfoImpl nInfo = new NodeInfoImpl(nodeId, path);
ItemInfoJsonHandler handler = new ItemInfoJsonHandler(resolver, nInfo, getRootURI(sessionInfo), getQValueFactory(sessionInfo), getPathFactory(), getIdFactory());
JsonParser ps = new JsonParser(handler);
ps.parse(method.getResponseBodyAsStream(), method.getResponseCharSet());
Iterator it = handler.getItemInfos();
if (!it.hasNext()) {
throw new ItemNotFoundException("No such node " + uri);
}
return handler.getItemInfos();
} else {
throw ExceptionConverter.generate(new DavException(statusCode, "Unable to retrieve NodeInfo for " + uri), method);
}
} catch (HttpException e) {
throw ExceptionConverter.generate(new DavException(method.getStatusCode(), "Unable to retrieve NodeInfo for " + uri));
} catch (IOException e) {
log.error("Internal error while retrieving NodeInfo.",e);
throw new RepositoryException(e.getMessage());
} finally {
method.releaseConnection();
}
}
}
/**
* @see RepositoryService#getPropertyInfo(SessionInfo, PropertyId)
*/
@Override
public PropertyInfo getPropertyInfo(SessionInfo sessionInfo, PropertyId propertyId) throws RepositoryException {
Path p = getPath(propertyId, sessionInfo);
String uri = getURI(p, sessionInfo);
PropFindMethod method = null;
try {
method = new PropFindMethod(uri, LAZY_PROPERTY_NAME_SET, DavConstants.DEPTH_0);
getClient(sessionInfo).executeMethod(method);
method.checkSuccess();
MultiStatusResponse[] responses = method.getResponseBodyAsMultiStatus().getResponses();
if (responses.length != 1) {
throw new ItemNotFoundException("Unable to retrieve the PropertyInfo. No such property " + uri);
}
MultiStatusResponse response = responses[0];
DavPropertySet props = response.getProperties(DavServletResponse.SC_OK);
int propertyType = PropertyType.valueFromName(props.get(JCR_TYPE).getValue().toString());
if (propertyType == PropertyType.BINARY) {
DavProperty lengthsProp = props.get(JCR_LENGTHS);
if (lengthsProp != null) {
// multivalued binary property
long[] lengths = ValueUtil.lengthsFromXml(lengthsProp.getValue());
QValue[] qValues = new QValue[lengths.length];
for (int i = 0 ; i < lengths.length ; i ++) {
qValues[i] = getQValueFactory(sessionInfo).create(lengths[i], uri, i);
}
return new PropertyInfoImpl(propertyId, p, propertyType, qValues);
} else {
// single valued binary property
long length = Long.parseLong(props.get(JCR_LENGTH).getValue().toString());
QValue qValue = getQValueFactory(sessionInfo).create(length, uri, QValueFactoryImpl.NO_INDEX) ;
return new PropertyInfoImpl(propertyId, p, propertyType, qValue);
}
} else if (props.contains(JCR_GET_STRING)) {
// single valued non-binary property
Object v = props.get(JCR_GET_STRING).getValue();
String str = (v == null) ? "" : v.toString();
QValue qValue = ValueFormat.getQValue(str, propertyType, getNamePathResolver(sessionInfo), getQValueFactory(sessionInfo));
return new PropertyInfoImpl(propertyId, p, propertyType, qValue);
} else {
// multivalued non-binary property or some other property that
// didn't expose the JCR_GET_STRING dav property.
return super.getPropertyInfo(sessionInfo, propertyId);
}
} catch (IOException e) {
log.error("Internal error while retrieving ItemInfo.",e);
throw new RepositoryException(e.getMessage());
} catch (DavException e) {
throw ExceptionConverter.generate(e);
} finally {
if (method != null) {
method.releaseConnection();
}
}
}
@Override
public Batch createBatch(SessionInfo sessionInfo, ItemId itemId) throws RepositoryException {
return new BatchImpl(itemId, sessionInfo);
}
@Override
public void submit(Batch batch) throws RepositoryException {
if (!(batch instanceof BatchImpl)) {
throw new RepositoryException("Unknown Batch implementation.");
}
BatchImpl batchImpl = (BatchImpl) batch;
try {
if (!batchImpl.isEmpty()) {
batchImpl.start();
}
} finally {
batchImpl.dispose();
}
}
@Override
public Tree createTree(SessionInfo sessionInfo, Batch batch, Name nodeName, Name primaryTypeName, String uniqueId) throws RepositoryException {
return new JsonTree(sessionInfo, nodeName, primaryTypeName, uniqueId, getNamePathResolver(sessionInfo));
}
@Override
public void copy(SessionInfo sessionInfo, String srcWorkspaceName, NodeId srcNodeId, NodeId destParentNodeId, Name destName) throws RepositoryException {
if (srcWorkspaceName.equals(sessionInfo.getWorkspaceName())) {
super.copy(sessionInfo, srcWorkspaceName, srcNodeId, destParentNodeId, destName);
return;
}
PostMethod method = null;
try {
method = new PostMethod(getWorkspaceURI(sessionInfo));
NamePathResolver resolver = getNamePathResolver(sessionInfo);
StringBuilder args = new StringBuilder();
args.append(srcWorkspaceName);
args.append(",");
args.append(resolver.getJCRPath(getPath(srcNodeId, sessionInfo, srcWorkspaceName)));
args.append(",");
String destParentPath = resolver.getJCRPath(getPath(destParentNodeId, sessionInfo));
String destPath = (destParentPath.endsWith("/") ?
destParentPath + resolver.getJCRName(destName) :
destParentPath + "/" + resolver.getJCRName(destName));
args.append(destPath);
method.addParameter(PARAM_COPY, args.toString());
addIfHeader(sessionInfo, method);
getClient(sessionInfo).executeMethod(method);
method.checkSuccess();
} catch (IOException e) {
throw new RepositoryException(e);
} catch (DavException e) {
throw ExceptionConverter.generate(e, method);
} finally {
if (method != null) {
method.releaseConnection();
}
}
}
@Override
public void clone(SessionInfo sessionInfo, String srcWorkspaceName, NodeId srcNodeId, NodeId destParentNodeId, Name destName, boolean removeExisting) throws RepositoryException {
PostMethod method = null;
try {
method = new PostMethod(getWorkspaceURI(sessionInfo));
NamePathResolver resolver = getNamePathResolver(sessionInfo);
StringBuilder args = new StringBuilder();
args.append(srcWorkspaceName);
args.append(",");
args.append(resolver.getJCRPath(getPath(srcNodeId, sessionInfo, srcWorkspaceName)));
args.append(",");
String destParentPath = resolver.getJCRPath(getPath(destParentNodeId, sessionInfo));
String destPath = (destParentPath.endsWith("/") ?
destParentPath + resolver.getJCRName(destName) :
destParentPath + "/" + resolver.getJCRName(destName));
args.append(destPath);
args.append(",");
args.append(Boolean.toString(removeExisting));
method.addParameter(PARAM_CLONE, args.toString());
addIfHeader(sessionInfo, method);
getClient(sessionInfo).executeMethod(method);
method.checkSuccess();
if (removeExisting) {
clearItemUriCache(sessionInfo);
}
} catch (IOException e) {
throw new RepositoryException(e);
} catch (DavException e) {
throw ExceptionConverter.generate(e, method);
} finally {
if (method != null) {
method.releaseConnection();
}
}
}
private static void addIfHeader(SessionInfo sInfo, HttpMethod method) {
try {
initMethod(method, sInfo, true);
} catch (RepositoryException e) {
// should never get here
log.error("Unable to retrieve lock tokens: omitted from request header.");
}
}
//--------------------------------------------------------------------------
private class BatchImpl implements Batch {
private final ItemId targetId;
private final SessionInfo sessionInfo;
private final List parts;
private final List diff;
/*
If this batch needs to remove multiple same-name-siblings starting
from lower index, the index of the following siblings must be reset
in order to avoid PathNotFoundException.
*/
private final Map removed = new HashMap();
private PostMethod method; // TODO: use PATCH request instead.
private boolean isConsumed;
// flag to determine if the uri-lookup needs to be cleared... e.g.
// after a move operation.
private boolean clear;
private BatchImpl(ItemId targetId, SessionInfo sessionInfo) {
this.targetId = targetId;
this.sessionInfo = sessionInfo;
parts = new ArrayList();
diff = new ArrayList();
}
private void start() throws RepositoryException {
checkConsumed();
// add lock tokens
addIfHeader(sessionInfo, method);
// insert the content of 'batchMap' part containing the ordered list
// of methods to be executed:
StringBuilder buf = new StringBuilder();
for (Iterator it = diff.iterator(); it.hasNext();) {
buf.append(it.next());
if (it.hasNext()) {
buf.append("\r");
}
}
// add the diff part - always do multipart in case the receiving servlet
// engine has a form-size restriction (JCR-3726)
Utils.addPart(PARAM_DIFF, buf.toString(), parts);
Part[] partArr = parts.toArray(new Part[parts.size()]);
RequestEntity entity = new MultipartRequestEntity(partArr, method.getParams());
method.setRequestEntity(entity);
HttpClient client = getClient(sessionInfo);
try {
client.executeMethod(method);
method.checkSuccess();
if (clear) {
RepositoryServiceImpl.super.clearItemUriCache(sessionInfo);
}
} catch (IOException e) {
throw new RepositoryException(e);
} catch (DavException e) {
throw ExceptionConverter.generate(e, method);
} finally {
method.releaseConnection();
}
}
private void dispose() {
method = null;
isConsumed = true;
// discard binary parts (JCR-2582)
for (Part part : parts) {
if (part instanceof BinaryPart) {
((BinaryPart) part).dispose();
}
}
}
private void checkConsumed() {
if (isConsumed) {
throw new IllegalStateException("Batch has already been consumed.");
}
}
private boolean isEmpty() {
return method == null;
}
private void assertMethod() throws RepositoryException {
if (method == null) {
String uri = getURI(targetId, sessionInfo);
method = new PostMethod(uri);
// ship lock-tokens as if-header to circumvent problems with
// locks created by this session.
String[] locktokens = sessionInfo.getLockTokens();
if (locktokens != null && locktokens.length > 0) {
IfHeader ifH = new IfHeader(locktokens);
method.setRequestHeader(ifH.getHeaderName(), ifH.getHeaderValue());
}
}
}
//----------------------------------------------------------< Batch >---
@Override
public void addNode(NodeId parentId, Name nodeName, Name nodetypeName,
String uuid) throws RepositoryException {
assertMethod();
NamePathResolver resolver = getNamePathResolver(sessionInfo);
Path p = getPathFactory().create(getPath(parentId, sessionInfo), nodeName, true);
String jcrPath = resolver.getJCRPath(p);
StringWriter wr = new StringWriter();
wr.write('{');
wr.write(Utils.getJsonKey(JcrConstants.JCR_PRIMARYTYPE));
wr.write(JsonUtil.getJsonString(getNamePathResolver(sessionInfo).getJCRName(nodetypeName)));
if (uuid != null) {
wr.write(',');
wr.write(Utils.getJsonKey(JcrConstants.JCR_UUID));
wr.write(JsonUtil.getJsonString(uuid));
}
wr.write('}');
appendDiff(SYMBOL_ADD_NODE, jcrPath, wr.toString());
}
@Override
public void addProperty(NodeId parentId, Name propertyName, QValue value) throws RepositoryException {
assertMethod();
Path p = getPathFactory().create(getPath(parentId, sessionInfo), propertyName, true);
setProperty(p, value, false);
}
@Override
public void addProperty(NodeId parentId, Name propertyName, QValue[] values) throws RepositoryException {
assertMethod();
Path p = getPathFactory().create(getPath(parentId, sessionInfo), propertyName, true);
setProperty(p, values, false);
}
@Override
public void setValue(PropertyId propertyId, QValue value) throws RepositoryException {
assertMethod();
Path p = getPath(propertyId, sessionInfo);
setProperty(p, value, true);
}
@Override
public void setValue(PropertyId propertyId, QValue[] values) throws RepositoryException {
assertMethod();
Path p = getPath(propertyId, sessionInfo);
setProperty(p, values, true);
}
@Override
public void remove(ItemId itemId) throws RepositoryException {
assertMethod();
Path rmPath = getPath(itemId, sessionInfo);
if (itemId.denotesNode()) {
rmPath = calcRemovePath(rmPath);
}
String rmJcrPath = getNamePathResolver(sessionInfo).getJCRPath(rmPath);
appendDiff(SYMBOL_REMOVE, rmJcrPath, null);
// clear the uri-lookup in case the itemID contains a uniqueID part.
if (itemId.getPath() == null) {
clear = true;
}
}
@Override
public void reorderNodes(NodeId parentId, NodeId srcNodeId, NodeId beforeNodeId) throws RepositoryException {
assertMethod();
// TODO: multiple reorder of SNS nodes requires readjustment of path -> see remove()
String srcPath = getNamePathResolver(sessionInfo).getJCRPath(getPath(srcNodeId, sessionInfo));
StringBuilder val = new StringBuilder();
if (beforeNodeId != null) {
Path beforePath = getPath(beforeNodeId, sessionInfo);
String beforeJcrPath = getNamePathResolver(sessionInfo).getJCRPath(beforePath);
val.append(Text.getName(beforeJcrPath));
val.append(ORDER_POSITION_BEFORE);
} else {
val.append(ORDER_POSITION_LAST);
}
appendDiff(SYMBOL_MOVE, srcPath, val.toString());
// clear the uri-lookup in case the itemID contains a uniqueID part.
if (srcNodeId.getPath() == null || (beforeNodeId != null && beforeNodeId.getPath() == null)) {
clear = true;
}
}
@Override
public void setMixins(NodeId nodeId, Name[] mixinNodeTypeNames) throws RepositoryException {
assertMethod();
QValue[] vs = new QValue[mixinNodeTypeNames.length];
for (int i = 0; i < mixinNodeTypeNames.length; i++) {
vs[i] = getQValueFactory(sessionInfo).create(mixinNodeTypeNames[i]);
}
Path p = getPathFactory().create(getPath(nodeId, sessionInfo), NameConstants.JCR_MIXINTYPES, true);
// register the diff entry including clearing previous calls to
// setMixins for the same node.
setProperty(p, vs, true);
}
@Override
public void setPrimaryType(NodeId nodeId, Name primaryNodeTypeName) throws RepositoryException {
assertMethod();
QValue v = getQValueFactory(sessionInfo).create(primaryNodeTypeName);
Path p = getPathFactory().create(getPath(nodeId, sessionInfo), NameConstants.JCR_PRIMARYTYPE, true);
// register the diff entry including clearing previous calls to
// setPrimaryType for the same node.
setProperty(p, v, true);
}
@Override
public void move(NodeId srcNodeId, NodeId destParentNodeId, Name destName) throws RepositoryException {
assertMethod();
String srcPath = getNamePathResolver(sessionInfo).getJCRPath(getPath(srcNodeId, sessionInfo));
Path destPath = getPathFactory().create(getPath(destParentNodeId, sessionInfo), destName, true);
String destJcrPath = getNamePathResolver(sessionInfo).getJCRPath(destPath);
appendDiff(SYMBOL_MOVE, srcPath, destJcrPath);
clear = true;
}
@Override
public void setTree(NodeId parentId, Tree contentTree) throws RepositoryException {
assertMethod();
if (!(contentTree instanceof JsonTree)) {
throw new RepositoryException("Invalid Tree implementation : " + contentTree.getClass().getName());
}
Path normalizedPath = getPathFactory().create(getPath(parentId, sessionInfo), contentTree.getName(), true);
String jcrPath = getNamePathResolver(sessionInfo).getJCRPath(normalizedPath);
appendDiff(SYMBOL_ADD_NODE, jcrPath, ((JsonTree) contentTree).toJsonString(parts));
}
//----------------------------------------------------------------------
/**
*
* @param symbol
* @param targetPath
* @param value
*/
private void appendDiff(char symbol, String targetPath, String value) {
StringBuilder bf = new StringBuilder();
bf.append(symbol).append(targetPath).append(" : ");
if (value != null) {
bf.append(value);
}
diff.add(bf.toString());
}
/**
*
* @param propPath
* @param value
* @throws RepositoryException
*/
private void setProperty(Path propPath, QValue value, boolean clearPrevious) throws RepositoryException {
NamePathResolver resolver = getNamePathResolver(sessionInfo);
String jcrPropPath = resolver.getJCRPath(propPath);
if (clearPrevious) {
clearPreviousSetProperty(jcrPropPath);
}
String strValue = Utils.getJsonString(value);
appendDiff(SYMBOL_SET_PROPERTY, jcrPropPath, strValue);
if (strValue == null) {
Utils.addPart(jcrPropPath, value, resolver, parts);
}
}
private void setProperty(Path propPath, QValue[] values, boolean clearPrevious) throws RepositoryException {
NamePathResolver resolver = getNamePathResolver(sessionInfo);
String jcrPropPath = resolver.getJCRPath(propPath);
if (clearPrevious) {
clearPreviousSetProperty(jcrPropPath);
}
StringBuilder strVal = new StringBuilder("[");
for (int i = 0; i < values.length; i++) {
String str = Utils.getJsonString(values[i]);
if (str == null) {
Utils.addPart(jcrPropPath, values[i], resolver, parts);
} else {
String delim = (i == 0) ? "" : ",";
strVal.append(delim).append(str);
}
}
strVal.append("]");
appendDiff(SYMBOL_SET_PROPERTY, jcrPropPath, strVal.toString());
}
private void clearPreviousSetProperty(String jcrPropPath) {
String key = SYMBOL_SET_PROPERTY + jcrPropPath + " : ";
// make sure that multiple calls to setProperty for a given path
// are only reflected once in the multipart, otherwise this will
// cause consistency problems as the various calls cannot be separated
// (missing unique identifier for the parts).
for (Iterator it = diff.iterator(); it.hasNext();) {
String entry = it.next();
if (entry.startsWith(key)) {
it.remove();
Utils.removeParts(jcrPropPath, parts);
return;
}
}
}
private Path calcRemovePath(Path removedNodePath) throws RepositoryException {
removed.put(removedNodePath, removedNodePath);
Name name = removedNodePath.getName();
int index = removedNodePath.getNormalizedIndex();
if (index > Path.INDEX_DEFAULT) {
Path.Element[] elems = removedNodePath.getElements();
PathBuilder pb = new PathBuilder();
for (int i = 0; i <= elems.length - 2; i++) {
pb.addLast(elems[i]);
}
Path parent = pb.getPath();
while (index > Path.INDEX_UNDEFINED) {
Path siblingP = getPathFactory().create(parent, name, --index, true);
if (removed.containsKey(siblingP)) {
// as the previous sibling has been remove -> the same index
// must be used to remove the node at removedNodePath.
siblingP = removed.get(siblingP);
removed.put(removedNodePath, siblingP);
return siblingP;
}
}
}
// first of siblings or no sibling at all
return removedNodePath;
}
}
//--------------------------------------------------------------------------
class JsonTree extends AbstractTree {
private final StringBuilder properties = new StringBuilder();
private final List parts = new ArrayList();
private final SessionInfo sessionInfo;
JsonTree(SessionInfo sessionInfo, Name nodeName, Name ntName, String uniqueId, NamePathResolver resolver) {
super(nodeName, ntName, uniqueId, resolver);
this.sessionInfo = sessionInfo;
}
//-------------------------------------------------------< AbstractTree >---
@Override
protected Tree createChild(Name name, Name primaryTypeName, String uniqueId) {
return new JsonTree(sessionInfo, name, primaryTypeName, uniqueId, getResolver());
}
//---------------------------------------------------------------< Tree >---
@Override
public void addProperty(NodeId parentId, Name propertyName, int propertyType, QValue value) throws RepositoryException {
properties.append(',');
properties.append(Utils.getJsonKey(getResolver().getJCRName(propertyName)));
String valueStr = Utils.getJsonString(value);
if (valueStr == null) {
String jcrPropPath = createPath(parentId, propertyName);
Utils.addPart(jcrPropPath, value, getResolver(), parts);
} else {
properties.append(valueStr);
}
}
@Override
public void addProperty(NodeId parentId, Name propertyName, int propertyType, QValue[] values) throws RepositoryException {
String name = getResolver().getJCRName(propertyName);
properties.append(',');
properties.append(Utils.getJsonKey(name));
int index = 0;
properties.append('[');
for (QValue value : values) {
String valueStr = Utils.getJsonString(value);
if (valueStr == null) {
String jcrPropPath = createPath(parentId, propertyName);
Utils.addPart(jcrPropPath, value, getResolver(), parts);
} else {
String delim = (index++ == 0) ? "" : ",";
properties.append(delim).append('"').append(valueStr).append('"');
}
}
properties.append(']');
}
private String createPath(NodeId parentId, Name propertyName) throws RepositoryException {
Path propPath = getPathFactory().create(getPath(parentId, sessionInfo), propertyName, true);
return getResolver().getJCRPath(propPath);
}
//--------------------------------------------------------------------------
String toJsonString(List batchParts) throws RepositoryException {
batchParts.addAll(this.parts);
for (Tree child : this.getChildren()) {
batchParts.addAll(((JsonTree) child).getParts());
}
StringBuilder json = new StringBuilder();
createJsonNodeFragment(json, this, true);
return json.toString();
}
//--------------------------------------------------------------------------
private String createJsonNodeFragment(StringBuilder json, JsonTree tree, boolean start) throws RepositoryException {
if (!start) {
json.append(',');
json.append(Utils.getJsonKey(getResolver().getJCRName(tree.getName())));
}
json.append('{');
json.append(Utils.getJsonKey(JcrConstants.JCR_PRIMARYTYPE));
json.append(JsonUtil.getJsonString(getResolver().getJCRName(tree.getPrimaryTypeName())));
String uuid = tree.getUniqueId();
if (uuid != null) {
json.append(',');
json.append(Utils.getJsonKey(JcrConstants.JCR_UUID));
json.append(JsonUtil.getJsonString(uuid));
}
// write all the properties.
json.append(tree.getProperties());
for (Tree child : tree.getChildren()) {
createJsonNodeFragment(json, (JsonTree) child, false);
}
json.append('}');
return json.toString();
}
private StringBuilder getProperties() {
return properties;
}
private List getParts() {
return parts;
}
}
}
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