org.modeshape.jcr.api.JcrTools Maven / Gradle / Ivy
/*
* ModeShape (http://www.modeshape.org)
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
* See the AUTHORS.txt file in the distribution for a full listing of
* individual contributors.
*
* ModeShape is free software. Unless otherwise indicated, all code in ModeShape
* is licensed to you under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* ModeShape is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.modeshape.jcr.api;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.jcr.Binary;
import javax.jcr.ImportUUIDBehavior;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.PathNotFoundException;
import javax.jcr.Property;
import javax.jcr.PropertyIterator;
import javax.jcr.PropertyType;
import javax.jcr.Repository;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.Value;
import javax.jcr.nodetype.NodeType;
import javax.jcr.observation.Event;
import javax.jcr.observation.EventIterator;
import javax.jcr.observation.EventListener;
import javax.jcr.query.Query;
import javax.jcr.query.QueryResult;
import org.modeshape.jcr.api.nodetype.NodeTypeManager;
/**
* Utility methods for working with JCR nodes.
*/
public class JcrTools {
private boolean debug = false;
public JcrTools() {
}
public JcrTools( boolean debug ) {
this.debug = debug;
}
/**
* Remove all children from the specified node
*
* @param node
* @return the number of children removed.
* @throws RepositoryException
* @throws IllegalArgumentException if the node argument is null
*/
public int removeAllChildren( Node node ) throws RepositoryException {
isNotNull(node, "node");
int childrenRemoved = 0;
NodeIterator iter = node.getNodes();
while (iter.hasNext()) {
Node child = iter.nextNode();
child.remove();
++childrenRemoved;
}
return childrenRemoved;
}
public int removeAllChildren( Session session,
String absPath ) throws RepositoryException {
try {
Node node = session.getNode(absPath);
return removeAllChildren(node);
} catch (PathNotFoundException e) {
// ignore
}
return 0;
}
/**
* Get the node under a specified node at a location defined by the specified relative path. If node is required, then a
* problem is created and added to the Problems list.
*
* @param node a parent node from which to obtain a node relative to. may not be null
* @param relativePath the path of the desired node. may not be null
* @param required true if node is required to exist under the given node.
* @return the node located relative the the input node
* @throws RepositoryException
* @throws IllegalArgumentException if the node, relativePath or problems argument is null
*/
public Node getNode( Node node,
String relativePath,
boolean required ) throws RepositoryException {
isNotNull(node, "node");
isNotNull(relativePath, "relativePath");
Node result = null;
try {
result = node.getNode(relativePath);
} catch (PathNotFoundException e) {
if (required) {
throw e;
}
}
return result;
}
/**
* Get the readable string form for a specified node.
*
* @param node the node to obtain the readable string form. may be null
* @return the readable string form for a specified node.
*/
public String getReadable( Node node ) {
if (node == null) return "";
try {
return node.getPath();
} catch (RepositoryException err) {
return node.toString();
}
}
/**
* Upload the content in the supplied stream into the repository at the defined path, using the given session. This method
* will create a 'nt:file' node at the supplied path, and any non-existant ancestors with nodes of type 'nt:folder'. As
* defined by the JCR specification, the binary content (and other properties) will be placed on a child of the 'nt:file' node
* named 'jcr:content' with a node type of 'nt:resource'.
*
* This method always closes the supplied stream.
*
*
* @param session the JCR session
* @param path the path to the file
* @param stream the stream containing the content to be uploaded
* @return the newly created 'nt:file' node
* @throws RepositoryException if there is a problem uploading the file
* @throws IOException if there is a problem using the stream
* @throws IllegalArgumentException is any of the parameters are null
*/
public Node uploadFile( Session session,
String path,
InputStream stream ) throws RepositoryException, IOException {
isNotNull(session, "session");
isNotNull(path, "path");
isNotNull(stream, "stream");
Node fileNode = null;
boolean error = false;
try {
// Create an 'nt:file' node at the supplied path, creating any missing intermediate nodes of type 'nt:folder' ...
fileNode = findOrCreateNode(session.getRootNode(), path, "nt:folder", "nt:file");
// Upload the file to that node ...
Node contentNode = findOrCreateChild(fileNode, "jcr:content", "nt:resource");
Binary binary = session.getValueFactory().createBinary(stream);
contentNode.setProperty("jcr:data", binary);
} catch (RepositoryException e) {
error = true;
throw e;
} catch (RuntimeException e) {
error = true;
throw e;
} finally {
try {
stream.close();
} catch (RuntimeException e) {
if (!error) throw e; // don't override any exception thrown in the block above
}
}
return fileNode;
}
/**
* Upload the content at the supplied URL into the repository at the defined path, using the given session. This method will
* create a 'nt:file' node at the supplied path, and any non-existant ancestors with nodes of type 'nt:folder'. As defined by
* the JCR specification, the binary content (and other properties) will be placed on a child of the 'nt:file' node named
* 'jcr:content' with a node type of 'nt:resource'.
*
* @param session the JCR session
* @param path the path to the file
* @param contentUrl the URL where the content can be found
* @return the newly created 'nt:file' node
* @throws RepositoryException if there is a problem uploading the file
* @throws IOException if there is a problem using the stream
* @throws IllegalArgumentException is any of the parameters are null
*/
public Node uploadFile( Session session,
String path,
URL contentUrl ) throws RepositoryException, IOException {
isNotNull(session, "session");
isNotNull(path, "path");
isNotNull(contentUrl, "contentUrl");
// Open the URL's stream first ...
InputStream stream = contentUrl.openStream();
return uploadFile(session, path, stream);
}
/**
* Upload the content in the supplied file into the repository at the defined path, using the given session. This method will
* create a 'nt:file' node at the supplied path, and any non-existant ancestors with nodes of type 'nt:folder'. As defined by
* the JCR specification, the binary content (and other properties) will be placed on a child of the 'nt:file' node named
* 'jcr:content' with a node type of 'nt:resource'.
*
* @param session the JCR session
* @param path the path to the file
* @param file the existing and readable file to be uploaded
* @return the newly created 'nt:file' node
* @throws RepositoryException if there is a problem uploading the file
* @throws IOException if there is a problem using the stream
* @throws IllegalArgumentException if the file does not exist or is not readable
* @throws IllegalArgumentException is any of the parameters are null
*/
public Node uploadFile( Session session,
String path,
File file ) throws RepositoryException, IOException {
isNotNull(session, "session");
isNotNull(path, "path");
isNotNull(file, "file");
if (!file.exists()) {
throw new IllegalArgumentException("The file \"" + file.getCanonicalPath() + "\" does not exist");
}
if (!file.canRead()) {
throw new IllegalArgumentException("The file \"" + file.getCanonicalPath() + "\" is not readable");
}
// Determine the 'lastModified' timestamp ...
Calendar lastModified = Calendar.getInstance();
lastModified.setTimeInMillis(file.lastModified());
// Open the URL's stream first ...
InputStream stream = new BufferedInputStream(new FileInputStream(file));
return uploadFile(session, path, stream);
}
public void uploadFileAndBlock( Session session,
String resourceFilePath,
String parentPath ) throws RepositoryException, IOException {
uploadFileAndBlock(session, resourceUrl(resourceFilePath), parentPath);
}
public void uploadFileAndBlock( Session session,
String folder,
String fileName,
String parentPath ) throws RepositoryException, IOException {
uploadFileAndBlock(session, resourceUrl(folder + fileName), parentPath);
}
public void uploadFileAndBlock( Session session,
URL url,
String parentPath ) throws RepositoryException, IOException {
// Grab the last segment of the URL path, using it as the filename
String filename = url.getPath().replaceAll("([^/]*/)*", "");
if (!parentPath.startsWith("/")) parentPath = "/" + parentPath;
if (!parentPath.endsWith("/")) parentPath = parentPath + "/";
final String nodePath = parentPath + filename;
// Wait a bit before uploading, to make sure everything is ready ...
try {
Thread.sleep(100);
} catch (InterruptedException e) {
throw new RuntimeException(e.getMessage());
}
print("---> Uploading '" + filename + "' into '" + nodePath + "'");
// Now use the JCR API to upload the file ...
final CountDownLatch latch = new CountDownLatch(1);
EventListener listener = new EventListener() {
/**
* {@inheritDoc}
*
* @see javax.jcr.observation.EventListener#onEvent(javax.jcr.observation.EventIterator)
*/
@Override
public void onEvent( EventIterator events ) {
while (events.hasNext()) {
try {
if (events.nextEvent().getPath().equals(nodePath)) {
latch.countDown();
}
} catch (Throwable e) {
latch.countDown();
throw new RuntimeException(e.getMessage());
}
}
}
};
session.getWorkspace()
.getObservationManager()
.addEventListener(listener, Event.NODE_ADDED, parentPath, true, null, null, false);
uploadFile(session, nodePath, url);
// Save the session ...
session.save();
// Now await for the event describing the newly-added file ...
try {
latch.await(2, TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new RuntimeException(e.getMessage());
}
}
public void uploadFilesAndBlock( String destinationPath,
String... resourcePaths ) throws Exception {
for (String resourcePath : resourcePaths) {
uploadFilesAndBlock(resourcePath, destinationPath);
}
}
/**
* Get or create a node at the specified path.
*
* @param session the JCR session. may not be null
* @param path the path of the desired node to be found or created. may not be null
* @return the existing or newly created node
* @throws RepositoryException
* @throws IllegalArgumentException if either the session or path argument is null
*/
public Node findOrCreateNode( Session session,
String path ) throws RepositoryException {
return findOrCreateNode(session, path, null, null);
}
/**
* Get or create a node at the specified path and node type.
*
* @param session the JCR session. may not be null
* @param path the path of the desired node to be found or created. may not be null
* @param nodeType the node type. may be null
* @return the existing or newly created node
* @throws RepositoryException
* @throws IllegalArgumentException if either the session or path argument is null
*/
public Node findOrCreateNode( Session session,
String path,
String nodeType ) throws RepositoryException {
return findOrCreateNode(session, path, nodeType, nodeType);
}
/**
* Get or create a node at the specified path.
*
* @param session the JCR session. may not be null
* @param path the path of the desired node to be found or created. may not be null
* @param defaultNodeType the default node type. may be null
* @param finalNodeType the optional final node type. may be null
* @return the existing or newly created node
* @throws RepositoryException
* @throws IllegalArgumentException if either the session or path argument is null
*/
public Node findOrCreateNode( Session session,
String path,
String defaultNodeType,
String finalNodeType ) throws RepositoryException {
isNotNull(session, "session");
Node root = session.getRootNode();
return findOrCreateNode(root, path, defaultNodeType, finalNodeType);
}
/**
* Get or create a node at the specified path.
*
* @param parentNode the parent node. may not be null
* @param path the path of the desired child node. may not be null
* @param defaultNodeType the default node type. may be null
* @param finalNodeType the optional final node type. may be null
* @return the existing or newly created node
* @throws RepositoryException
* @throws IllegalArgumentException if either the parentNode or path argument is null
*/
public Node findOrCreateNode( Node parentNode,
String path,
String defaultNodeType,
String finalNodeType ) throws RepositoryException {
isNotNull(parentNode, "parentNode");
isNotNull(path, "path");
// Remove leading and trailing slashes ...
String relPath = path.replaceAll("^/+", "").replaceAll("/+$", "");
// Look for the node first ...
try {
return parentNode.getNode(relPath);
} catch (PathNotFoundException e) {
// continue
}
// Create the node, which has to be done segment by segment ...
String[] pathSegments = relPath.split("/");
Node node = parentNode;
for (int i = 0, len = pathSegments.length; i != len; ++i) {
String pathSegment = pathSegments[i];
pathSegment = pathSegment.trim();
if (pathSegment.length() == 0) continue;
if (node.hasNode(pathSegment)) {
// Find the existing node ...
node = node.getNode(pathSegment);
} else {
// Make sure there is no index on the final segment ...
String pathSegmentWithNoIndex = pathSegment.replaceAll("(\\[\\d+\\])+$", "");
// Create the node ...
String nodeType = defaultNodeType;
if (i == len - 1 && finalNodeType != null) nodeType = finalNodeType;
if (nodeType != null) {
node = node.addNode(pathSegmentWithNoIndex, nodeType);
} else {
node = node.addNode(pathSegmentWithNoIndex);
}
}
}
return node;
}
/**
* Get or create a node with the specified node under the specified parent node.
*
* @param parent the parent node. may not be null
* @param name the name of the child node. may not be null
* @return the existing or newly created child node
* @throws RepositoryException
* @throws IllegalArgumentException if either the parent or name argument is null
*/
public Node findOrCreateChild( Node parent,
String name ) throws RepositoryException {
return findOrCreateChild(parent, name, null);
}
/**
* Get or create a node with the specified node and node type under the specified parent node.
*
* @param parent the parent node. may not be null
* @param name the name of the child node. may not be null
* @param nodeType the node type. may be null
* @return the existing or newly created child node
* @throws RepositoryException
*/
public Node findOrCreateChild( Node parent,
String name,
String nodeType ) throws RepositoryException {
return findOrCreateNode(parent, name, nodeType, nodeType);
}
public boolean isDebug() {
return debug;
}
public void print( Object msg ) {
if (debug && msg != null) {
System.out.println(msg.toString());
}
}
/**
* Load the subgraph below this node, and print it to System.out if printing is enabled.
*
* @param node the root of the subgraph
* @throws RepositoryException
*/
public void printSubgraph( Node node ) throws RepositoryException {
printSubgraph(node, Integer.MAX_VALUE);
}
/**
* Load the subgraph below this node, and print it to System.out if printing is enabled.
*
* @param node the root of the subgraph
* @param maxDepth the maximum depth of the subgraph that should be printed
* @throws RepositoryException
*/
public void printSubgraph( Node node,
int maxDepth ) throws RepositoryException {
printSubgraph(node, " ", node.getDepth(), maxDepth);
}
/**
* Print this node and its properties to System.out if printing is enabled.
*
* @param node the node to be printed
* @throws RepositoryException
*/
public void printNode( Node node ) throws RepositoryException {
printSubgraph(node, " ", node.getDepth(), 1);
}
/**
* Load the subgraph below this node, and print it to System.out if printing is enabled.
*
* @param node the root of the subgraph
* @param lead the string that each line should begin with; may be null if there is no such string
* @param depthOfSubgraph the depth of this subgraph's root node
* @param maxDepthOfSubgraph the maximum depth of the subgraph that should be printed
* @throws RepositoryException
*/
public void printSubgraph( Node node,
String lead,
int depthOfSubgraph,
int maxDepthOfSubgraph ) throws RepositoryException {
int currentDepth = node.getDepth() - depthOfSubgraph + 1;
if (currentDepth > maxDepthOfSubgraph) return;
if (lead == null) lead = "";
String nodeLead = lead + createString(' ', (currentDepth - 1) * 2);
StringBuilder sb = new StringBuilder();
sb.append(nodeLead);
if (node.getDepth() == 0) {
sb.append("/");
} else {
sb.append(node.getName());
if (node.getIndex() != 1) {
sb.append('[').append(node.getIndex()).append(']');
}
}
sb.append(" jcr:primaryType=" + node.getPrimaryNodeType().getName());
boolean referenceable = node.isNodeType("mix:referenceable");
if (node.getMixinNodeTypes().length != 0) {
sb.append(" jcr:mixinTypes=[");
boolean first = true;
for (NodeType mixin : node.getMixinNodeTypes()) {
if (first) first = false;
else sb.append(',');
sb.append(mixin.getName());
}
sb.append(']');
}
if (referenceable) {
sb.append(" jcr:uuid=" + node.getIdentifier());
}
print(sb);
List propertyNames = new LinkedList();
for (PropertyIterator iter = node.getProperties(); iter.hasNext();) {
Property property = iter.nextProperty();
String name = property.getName();
if (name.equals("jcr:primaryType") || name.equals("jcr:mixinTypes") || name.equals("jcr:uuid")) continue;
propertyNames.add(property.getName());
}
Collections.sort(propertyNames);
for (String propertyName : propertyNames) {
Property property = node.getProperty(propertyName);
sb = new StringBuilder();
sb.append(nodeLead).append(" - ").append(propertyName).append('=');
int type = property.getType();
boolean binary = type == PropertyType.BINARY;
if (property.isMultiple()) {
sb.append('[');
boolean first = true;
for (Value value : property.getValues()) {
if (first) first = false;
else sb.append(',');
if (binary) {
sb.append(value.getBinary());
} else {
sb.append(getStringValue(value, type));
}
}
sb.append(']');
} else {
Value value = property.getValue();
if (binary) {
sb.append(value.getBinary());
} else {
sb.append(getStringValue(value, type));
}
}
print(sb);
}
if (currentDepth < maxDepthOfSubgraph) {
for (NodeIterator iter = node.getNodes(); iter.hasNext();) {
Node child = iter.nextNode();
printSubgraph(child, lead, depthOfSubgraph, maxDepthOfSubgraph);
}
}
}
/**
* Execute the supplied JCR-SQL2 query and, if printing is enabled, print out the results.
*
* @param session the session
* @param jcrSql2 the JCR-SQL2 query
* @return the results
* @throws RepositoryException
*/
public QueryResult printQuery( Session session,
String jcrSql2 ) throws RepositoryException {
return printQuery(session, jcrSql2, Query.JCR_SQL2, -1, null);
}
/**
* Execute the supplied JCR-SQL2 query and, if printing is enabled, print out the results.
*
* @param session the session
* @param jcrSql2 the JCR-SQL2 query
* @param expectedNumberOfResults the expected number of rows in the results, or -1 if this is not to be checked
* @param variables the variables for the query
* @return the results
* @throws RepositoryException
*/
public QueryResult printQuery( Session session,
String jcrSql2,
long expectedNumberOfResults,
Variable... variables ) throws RepositoryException {
Map keyValuePairs = new HashMap();
for (Variable var : variables) {
keyValuePairs.put(var.key, var.value);
}
return printQuery(session, jcrSql2, Query.JCR_SQL2, expectedNumberOfResults, keyValuePairs);
}
/**
* Execute the supplied JCR-SQL2 query and, if printing is enabled, print out the results.
*
* @param session the session
* @param jcrSql2 the JCR-SQL2 query
* @param expectedNumberOfResults the expected number of rows in the results, or -1 if this is not to be checked
* @param variables the array of variable maps for the query; all maps will be combined into a single map
* @return the results
* @throws RepositoryException
*/
public QueryResult printQuery( Session session,
String jcrSql2,
long expectedNumberOfResults,
Map variables ) throws RepositoryException {
return printQuery(session, jcrSql2, Query.JCR_SQL2, expectedNumberOfResults, variables);
}
public QueryResult printQuery( Session session,
String queryExpression,
String queryLanguage,
long expectedNumberOfResults,
Map variables ) throws RepositoryException {
QueryResult results = null;
for (int i = 0; i != 10; ++i) {
Query query = session.getWorkspace().getQueryManager().createQuery(queryExpression, queryLanguage);
if (variables != null && !variables.isEmpty()) {
for (Map.Entry entry : variables.entrySet()) {
String key = entry.getKey();
Value value = session.getValueFactory().createValue(entry.getValue());
query.bindValue(key, value);
}
}
results = query.execute();
if (results.getRows().getSize() == expectedNumberOfResults) {
break;
}
// We got a different number of results. It could be that we caught the indexer before it was done indexing
// the changes, so sleep for a bit and try again ...
try {
print("---> Waiting for query: " + queryExpression + (variables != null ? " using " + variables : ""));
Thread.sleep(500);
} catch (InterruptedException e) {
throw new RuntimeException(e.getMessage());
}
}
assert results != null;
if (expectedNumberOfResults >= 0L && expectedNumberOfResults != results.getRows().getSize()) {
throw new AssertionError("Expected different number of rows from '" + queryExpression + "': got "
+ results.getRows().getSize() + " but expected " + expectedNumberOfResults);
}
if (debug) {
print(queryExpression);
print(results);
print("");
}
return results;
}
public Variable var( String key,
String value ) {
return new Variable(key, value);
}
public Map vars( String... keyValuePairs ) {
assert keyValuePairs.length % 2 == 0 : "Must provide an even number of keys and values";
Map map = new HashMap();
for (int i = 0; i != keyValuePairs.length; ++i) {
String key = keyValuePairs[i];
String value = keyValuePairs[++i];
map.put(key, value);
}
return map;
}
public static class Variable {
protected final String key;
protected final String value;
public Variable( String key,
String value ) {
this.key = key;
this.value = value;
}
}
protected String getStringValue( Value value,
int type ) throws RepositoryException {
String result = value.getString();
if (type == PropertyType.STRING) {
result = "\"" + result + "\"";
}
return result;
}
public void registerNodeTypes( Session session,
String pathToCndResourceFile ) {
InputStream stream = getClass().getClassLoader().getResourceAsStream(pathToCndResourceFile);
if (stream == null) {
String msg = "\"" + pathToCndResourceFile + "\" does not reference an existing file";
System.err.println(msg);
throw new IllegalArgumentException(msg);
}
assert stream != null;
try {
NodeTypeManager nodeTypeMgr = (NodeTypeManager)session.getWorkspace().getNodeTypeManager();
nodeTypeMgr.registerNodeTypes(stream, true);
} catch (RepositoryException re) {
throw new IllegalStateException("Could not load node type definition files", re);
} catch (IOException ioe) {
throw new IllegalStateException("Could not access node type definition files", ioe);
} catch (ClassCastException e) {
throw new IllegalStateException("Unknown repository implementation; unable to import CND files", e);
} finally {
try {
stream.close();
} catch (IOException closer) {
}
}
}
public void importContent( Session session,
String pathToResourceFile ) throws Exception {
importContent(session, getClass(), pathToResourceFile);
}
public void importContent( Session session,
String pathToResourceFile,
int importBehavior ) throws Exception {
importContent(session, getClass(), pathToResourceFile, null, importBehavior);
}
public void importContent( Session session,
String pathToResourceFile,
String jcrPathToImportUnder ) throws Exception {
importContent(session, getClass(), pathToResourceFile, jcrPathToImportUnder);
}
public void importContent( Session session,
String pathToResourceFile,
String jcrPathToImportUnder,
int importBehavior ) throws Exception {
importContent(session, getClass(), pathToResourceFile, jcrPathToImportUnder, importBehavior);
}
public static void importContent( Session session,
Class testClass,
String pathToResourceFile ) throws Exception {
importContent(session, testClass, pathToResourceFile, null);
}
public static void importContent( Session session,
Class testClass,
String pathToResourceFile,
String jcrPathToImportUnder ) throws Exception {
int behavior = ImportUUIDBehavior.IMPORT_UUID_CREATE_NEW;
importContent(session, testClass, pathToResourceFile, null, behavior);
}
public static void importContent( Session session,
Class testClass,
String pathToResourceFile,
String jcrPathToImportUnder,
int importBehavior ) throws Exception {
// Use a session to load the contents ...
try {
InputStream stream = testClass.getClassLoader().getResourceAsStream(pathToResourceFile);
if (stream == null) {
String msg = "\"" + pathToResourceFile + "\" does not reference an existing file";
System.err.println(msg);
throw new IllegalArgumentException(msg);
}
assert stream != null;
if (jcrPathToImportUnder == null || jcrPathToImportUnder.trim().length() == 0) jcrPathToImportUnder = "/";
try {
session.getWorkspace().importXML(jcrPathToImportUnder, stream, importBehavior);
} finally {
try {
session.save();
} finally {
stream.close();
session.logout();
}
}
session.save();
} catch (RuntimeException t) {
t.printStackTrace();
throw t;
} catch (Exception t) {
t.printStackTrace();
throw t;
}
}
protected URL resourceUrl( String name ) {
return getClass().getClassLoader().getResource(name);
}
/**
* Execute the supplied operation on each node in the workspace accessible by the supplied session.
*
* @param session the session
* @param includeSystemNodes true if all nodes under "/jcr:system" should be included, or false if the system nodes should be
* excluded
* @param operation the operation
* @throws Exception the exception thrown by the repository or the operation
*/
public void onEachNode( Session session,
boolean includeSystemNodes,
NodeOperation operation ) throws Exception {
Node node = session.getRootNode();
operation.run(node);
NodeIterator iter = node.getNodes();
while (iter.hasNext()) {
Node child = iter.nextNode();
if (!includeSystemNodes && child.getName().equals("jcr:system")) continue;
operation.run(child);
onEachNodeBelow(child, operation);
}
}
protected void onEachNodeBelow( Node parent,
NodeOperation operation ) throws Exception {
NodeIterator iter = parent.getNodes();
while (iter.hasNext()) {
Node child = iter.nextNode();
operation.run(child);
onEachNodeBelow(child, operation);
}
}
public void repeatedlyWithSession( Repository repository,
int times,
Operation operation ) throws Exception {
for (int i = 0; i != times; ++i) {
double time = withSession(repository, operation);
print("Time to execute \"" + operation.getClass().getSimpleName() + "\": " + time + " ms");
}
}
public double withSession( Repository repository,
Operation operation ) throws Exception {
long startTime = System.nanoTime();
Session session = repository.login();
try {
operation.run(session);
} finally {
session.logout();
}
return TimeUnit.MILLISECONDS.convert(Math.abs(System.nanoTime() - startTime), TimeUnit.NANOSECONDS);
}
public static interface Operation {
public void run( Session session ) throws Exception;
}
public static interface NodeOperation {
public void run( Node node ) throws Exception;
}
public static abstract class BasicOperation implements Operation {
protected JcrTools tools;
protected BasicOperation( JcrTools tools ) {
this.tools = tools;
}
protected Node assertNode( Session session,
String path,
String primaryType,
String... mixinTypes ) throws RepositoryException {
Node node = session.getNode(path);
assert node.getPrimaryNodeType().getName().equals(primaryType);
Set expectedMixinTypes = new HashSet(Arrays.asList(mixinTypes));
Set actualMixinTypes = new HashSet();
for (NodeType mixin : node.getMixinNodeTypes()) {
actualMixinTypes.add(mixin.getName());
}
assert actualMixinTypes.equals(expectedMixinTypes) : "Mixin types do not match";
return node;
}
}
public static class BrowseContent extends BasicOperation {
private String path;
public BrowseContent( JcrTools tools,
String path ) {
super(tools);
this.path = path;
}
@Override
public void run( Session s ) throws RepositoryException {
// Verify the file was imported ...
Node node = s.getNode(path);
assert node != null : "Node at " + path + " is null";
}
}
public static class CountNodes extends BasicOperation {
public long numNonSystemNodes = 0L;
public CountNodes( JcrTools tools ) {
super(tools);
}
@Override
public void run( Session s ) throws RepositoryException {
// Count the nodes below the root, excluding the '/jcr:system' branch ...
String queryStr = "SELECT [jcr:primaryType] FROM [nt:base]";
Query query = s.getWorkspace().getQueryManager().createQuery(queryStr, Query.JCR_SQL2);
numNonSystemNodes += query.execute().getRows().getSize();
if (tools != null) tools.print(" # nodes NOT in '/jcr:system' branch: " + numNonSystemNodes);
}
}
public static class PrintNodes extends BasicOperation {
public PrintNodes( JcrTools tools ) {
super(tools);
}
@Override
public void run( Session s ) throws RepositoryException {
// Count the nodes below the root, excluding the '/jcr:system' branch ...
String queryStr = "SELECT [jcr:path] FROM [nt:base] ORDER BY [jcr:path]";
Query query = s.getWorkspace().getQueryManager().createQuery(queryStr, Query.JCR_SQL2);
if (tools != null) tools.print(query.execute());
}
}
private static String createString( final char charToRepeat,
int numberOfRepeats ) {
assert numberOfRepeats >= 0;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < numberOfRepeats; ++i) {
sb.append(charToRepeat);
}
return sb.toString();
}
private static void isNotNull( Object argument,
String name ) {
if (argument == null) {
throw new IllegalArgumentException("The argument \"" + name + "\" may not be null");
}
}
}