/*
* #%L
* ACS AEM Tools Bundle
* %%
* Copyright (C) 2014 Adobe
* %%
* Licensed 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.
* #L%
*/
package com.adobe.acs.commons.wcm.impl;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Calendar;
import java.util.Map;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import org.apache.commons.io.IOUtils;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.jackrabbit.JcrConstants;
import org.apache.jackrabbit.commons.JcrUtils;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.commons.mime.MimeTypeService;
import org.apache.sling.commons.osgi.PropertiesUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.day.cq.polling.importer.ImportException;
import com.day.cq.polling.importer.Importer;
@Component(label = "ACS AEM Commons - File Importer",
description = "Importer which can import a file from the file system into the content repository.",
metatype = true)
@Service
@Property(label = "Display Name", description = "Label which will be displayed in the Polling Importer Add... dialog",
name = "displayName", value = "File")
public final class FileImporter implements Importer {
private static final Logger log = LoggerFactory.getLogger(FileImporter.class);
private static final String DEFAULT_SCHEME = "file";
@Reference
private MimeTypeService mimeTypeService;
@Property(label = "Importer Scheme",
description = "Scheme value that will be used for this importer. Must be unique across importers.",
value = DEFAULT_SCHEME)
private static final String PROP_SCHEME = Importer.SCHEME_PROPERTY;
private String scheme;
@Activate
protected void activate(Map<String, Object> properties) {
this.scheme = PropertiesUtil.toString(properties.get(PROP_SCHEME), DEFAULT_SCHEME);
}
@Override
public void importData(String schemeValue, String dataSource, Resource target) {
if (scheme.equals(schemeValue)) {
File file = new File(dataSource);
if (file.exists()) {
Calendar fileLastMod = Calendar.getInstance();
fileLastMod.setTimeInMillis(file.lastModified());
String fileName = file.getName();
String mimeType = mimeTypeService.getMimeType(fileName);
final Node targetParent;
final String targetName;
FileInputStream stream = null;
Node node = target.adaptTo(Node.class);
if (node != null) {
try {
if (node.isNodeType(JcrConstants.NT_FILE)) {
// assume that we are intending to replace this file
targetParent = node.getParent();
targetName = node.getName();
Calendar nodeLastMod = JcrUtils.getLastModified(node);
if (!nodeLastMod.before(fileLastMod)) {
log.info("File '{}' does not have a newer timestamp than '{}'. Skipping import.",
dataSource, target);
return;
}
} else {
// assume that we are creating a new file under the current node
targetParent = node;
targetName = fileName;
if (targetParent.hasNode(targetName)) {
Node targetNode = targetParent.getNode(targetName);
Calendar nodeLastMod = JcrUtils.getLastModified(targetNode);
if (!nodeLastMod.before(fileLastMod)) {
log.info("File '{}' does not have a newer timestamp than '{}'. Skipping import.",
dataSource, targetNode.getPath());
return;
}
}
}
stream = new FileInputStream(file);
JcrUtils.putFile(targetParent, targetName, mimeType, stream);
node.getSession().save();
} catch (RepositoryException e) {
throw new ImportException("Unable to import from file '" + dataSource + "' to '"
+ target.getPath() + "'", e);
} catch (FileNotFoundException e) {
throw new ImportException("Unexpected FileNotFoundException while importing", e);
} finally {
if (stream != null) {
IOUtils.closeQuietly(stream);
}
}
} else {
log.warn("Target '{}' is not a JCR node. Skipping import from '{}'.", target.getPath(), dataSource);
}
} else {
log.warn("File at '{}' does not exist. Skipping import.", dataSource);
}
} else {
log.warn("Unrecognized scheme '{}' passed to importData()", schemeValue);
}
}
}