/*
* 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.InputStream;
import java.util.HashMap;
import java.util.Map;
import javax.jcr.ItemNotFoundException;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
import org.apache.http.Header;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.protocol.HttpContext;
import org.apache.jackrabbit.commons.webdav.JcrRemotingConstants;
import org.apache.jackrabbit.spi2dav.ExceptionConverter;
import org.apache.jackrabbit.spi2dav.ItemResourceConstants;
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.HttpPropfind;
import org.apache.jackrabbit.webdav.property.DavProperty;
import org.apache.jackrabbit.webdav.property.DavPropertyNameSet;
import org.apache.jackrabbit.webdav.property.DavPropertySet;
/**
* ValueLoader
...
*/
class ValueLoader {
private final HttpClient client;
private final HttpContext context;
ValueLoader(HttpClient client, HttpContext context) {
this.client = client;
this.context = context;
}
void loadBinary(String uri, int index, Target target) throws RepositoryException, IOException {
HttpGet request = new HttpGet(uri);
try {
HttpResponse response = client.execute(request, context);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == DavServletResponse.SC_OK) {
target.setStream(response.getEntity().getContent());
} else {
throw ExceptionConverter.generate(new DavException(statusCode, ("Unable to load binary at " + uri + " - Status line = " + response.getStatusLine())));
}
} finally {
request.releaseConnection();
}
}
public Map loadHeaders(String uri, String[] headerNames) throws IOException,
RepositoryException {
HttpHead request = new HttpHead(uri);
try {
HttpResponse response = client.execute(request, context);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == DavServletResponse.SC_OK) {
Map headers = new HashMap();
for (String name : headerNames) {
Header hdr = response.getFirstHeader(name);
if (hdr != null) {
headers.put(name, hdr.getValue());
}
}
return headers;
} else {
throw ExceptionConverter.generate(new DavException(statusCode, ("Unable to load headers at " + uri + " - Status line = " + response.getStatusLine().toString())));
}
} finally {
request.releaseConnection();
}
}
int loadType(String uri) throws RepositoryException, IOException {
DavPropertyNameSet nameSet = new DavPropertyNameSet();
nameSet.add(JcrRemotingConstants.JCR_TYPE_LN, ItemResourceConstants.NAMESPACE);
HttpPropfind request = null;
try {
request = new HttpPropfind(uri, nameSet, DavConstants.DEPTH_0);
HttpResponse response = client.execute(request, context);
request.checkSuccess(response);
MultiStatusResponse[] responses = request.getResponseBodyAsMultiStatus(response).getResponses();
if (responses.length == 1) {
DavPropertySet props = responses[0].getProperties(DavServletResponse.SC_OK);
DavProperty> type = props.get(JcrRemotingConstants.JCR_TYPE_LN, ItemResourceConstants.NAMESPACE);
if (type != null) {
return PropertyType.valueFromName(type.getValue().toString());
} else {
throw new RepositoryException("Internal error. Cannot retrieve property type at " + uri);
}
} else {
throw new ItemNotFoundException("Internal error. Cannot retrieve property type at " + uri);
}
} catch (DavException e) {
throw ExceptionConverter.generate(e);
} finally {
if (request != null) {
request.releaseConnection();
}
}
}
//--------------------------------------------------------------------------
/**
* Internal interface
*/
interface Target {
/**
* @param in
* @throws IOException
*/
void setStream(InputStream in) throws IOException;
/**
* Resets (clears) the state and this target is in the state as
* prior to setStream()
*/
void reset();
}
}