/*
* 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.sling.servlets.post.impl.operations;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.servlet.http.HttpServletResponse;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.request.RequestParameter;
import org.apache.sling.api.resource.PersistenceException;
import org.apache.sling.jcr.contentloader.ContentImportListener;
import org.apache.sling.jcr.contentloader.ContentImporter;
import org.apache.sling.jcr.contentloader.ImportOptions;
import org.apache.sling.servlets.post.Modification;
import org.apache.sling.servlets.post.ModificationType;
import org.apache.sling.servlets.post.PostResponse;
import org.apache.sling.servlets.post.SlingPostConstants;
import org.apache.sling.servlets.post.VersioningConfiguration;
import org.apache.sling.servlets.post.impl.helper.RequestProperty;
/**
* The <code>ImportOperation</code> class implements the
* {@link org.apache.sling.servlets.post.SlingPostConstants#OPERATION_IMPORT}
* import operation for the Sling default POST servlet.
*/
public class ImportOperation extends AbstractCreateOperation {
/**
* Reference to the content importer service
*/
private Object contentImporter;
public void setContentImporter(Object importer) {
this.contentImporter = importer;
}
public void unsetContentImporter(Object importer) {
if ( this.contentImporter == importer ) {
this.contentImporter = null;
}
}
private String getRequestParamAsString(SlingHttpServletRequest request, String key) {
RequestParameter requestParameter = request.getRequestParameter(key);
if (requestParameter == null) {
return null;
}
return requestParameter.getString();
}
@Override
protected void doRun(SlingHttpServletRequest request, PostResponse response, final List<Modification> changes)
throws PersistenceException {
try {
Object importer = contentImporter;
if (importer == null) {
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Missing content importer for import");
return;
}
Map<String, RequestProperty> reqProperties = collectContent(request,
response);
VersioningConfiguration versioningConfiguration = getVersioningConfiguration(request);
// do not change order unless you have a very good reason.
Session session = request.getResourceResolver().adaptTo(Session.class);
processCreate(request.getResourceResolver(), reqProperties, response, changes, versioningConfiguration);
String path = response.getPath();
Node node = null;
try {
node = (Node) session.getItem(path);
} catch ( RepositoryException e ) {
log.warn(e.getMessage(),e);
// was not able to resolve the node
} catch ( ClassCastException e) {
log.warn(e.getMessage(),e);
// it was not a node
}
if (node == null) {
response.setStatus(HttpServletResponse.SC_NOT_FOUND,
"Missing target node " + path + " for import");
return;
}
String contentType = getRequestParamAsString(request, SlingPostConstants.RP_CONTENT_TYPE);
if (contentType == null) {
response.setStatus(HttpServletResponse.SC_PRECONDITION_FAILED,
"Required :contentType parameter is missing");
return;
}
//import options passed as request parameters.
final boolean replace = "true".equalsIgnoreCase(getRequestParamAsString(request, SlingPostConstants.RP_REPLACE));
final boolean replaceProperties = "true".equalsIgnoreCase(getRequestParamAsString(request, SlingPostConstants.RP_REPLACE_PROPERTIES));
final boolean checkin = "true".equalsIgnoreCase(getRequestParamAsString(request, SlingPostConstants.RP_CHECKIN));
final boolean autoCheckout = "true".equalsIgnoreCase(getRequestParamAsString(request, SlingPostConstants.RP_AUTO_CHECKOUT));
String basePath = getResourcePath(request);
if (basePath.endsWith("/")) {
//remove the trailing slash
basePath = basePath.substring(0, basePath.length() - 1);
}
// default to creating content
response.setCreateRequest(true);
final String targetName;
//check if a name was posted to use as the name of the imported root node
if (getRequestParamAsString(request, SlingPostConstants.RP_NODE_NAME) != null) {
// exact name
targetName = getRequestParamAsString(request, SlingPostConstants.RP_NODE_NAME);
if (targetName.length() > 0 && node.hasNode(targetName)) {
if (replace) {
response.setCreateRequest(false);
} else {
response.setStatus(
HttpServletResponse.SC_PRECONDITION_FAILED,
"Cannot import " + path + "/" + targetName
+ ": node exists");
return;
}
}
} else if (getRequestParamAsString(request, SlingPostConstants.RP_NODE_NAME_HINT) != null) {
// node name hint only
String nodePath = generateName(request, basePath);
String name = nodePath.substring(nodePath.lastIndexOf('/') + 1);
targetName = name;
} else {
// no name posted, so the import won't create a root node
targetName = "";
}
final String contentRootName = targetName + "." + contentType;
try {
InputStream contentStream = null;
RequestParameter contentParameter = request.getRequestParameter(SlingPostConstants.RP_CONTENT);
if (contentParameter != null) {
contentStream = contentParameter.getInputStream();
} else {
RequestParameter contentFile = request.getRequestParameter(SlingPostConstants.RP_CONTENT_FILE);
if (contentFile != null) {
contentStream = contentFile.getInputStream();
}
}
if (contentStream == null) {
response.setStatus(HttpServletResponse.SC_PRECONDITION_FAILED,
"Missing content for import");
return;
} else {
((ContentImporter)importer).importContent(node, contentRootName, contentStream,
new ImportOptions() {
@Override
public boolean isCheckin() {
return checkin;
}
@Override
public boolean isAutoCheckout() {
return autoCheckout;
}
@Override
public boolean isIgnoredImportProvider(
String extension) {
// this probably isn't important in this context.
return false;
}
@Override
public boolean isOverwrite() {
return replace;
}
/* (non-Javadoc)
* @see org.apache.sling.jcr.contentloader.ImportOptions#isPropertyOverwrite()
*/
@Override
public boolean isPropertyOverwrite() {
return replaceProperties;
}
},
new ContentImportListener() {
@Override
public void onReorder(String orderedPath, String beforeSibbling) {
changes.add(Modification.onOrder(orderedPath, beforeSibbling));
}
@Override
public void onMove(String srcPath, String destPath) {
changes.add(Modification.onMoved(srcPath, destPath));
}
@Override
public void onModify(String srcPath) {
changes.add(Modification.onModified(srcPath));
}
@Override
public void onDelete(String srcPath) {
changes.add(Modification.onDeleted(srcPath));
}
@Override
public void onCreate(String srcPath) {
changes.add(Modification.onCreated(srcPath));
}
@Override
public void onCopy(String srcPath, String destPath) {
changes.add(Modification.onCopied(srcPath, destPath));
}
@Override
public void onCheckin(String srcPath) {
changes.add(Modification.onCheckin(srcPath));
}
@Override
public void onCheckout(String srcPath) {
changes.add(Modification.onCheckout(srcPath));
}
});
}
if (!changes.isEmpty()) {
//fill in the data for the response report
Modification modification = changes.get(0);
if (modification.getType() == ModificationType.CREATE) {
String importedPath = modification.getSource();
response.setLocation(externalizePath(request, importedPath));
response.setPath(importedPath);
int lastSlashIndex = importedPath.lastIndexOf('/');
if (lastSlashIndex != -1) {
String parentPath = importedPath.substring(0, lastSlashIndex);
response.setParentLocation(externalizePath(request, parentPath));
}
}
}
} catch (IOException e) {
throw new PersistenceException(e.getMessage(), e);
}
} catch ( final RepositoryException re) {
throw new PersistenceException(re.getMessage(), re);
}
}
}