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/*******************************************************************************
* Copyright (c) 2010 Tasktop Technologies and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tasktop Technologies - initial API and implementation
* Eike Stepper - fixes for bug 323568
*******************************************************************************/
package org.eclipse.mylyn.commons.net.http;
import java.io.IOException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpMethodBase;
import org.eclipse.mylyn.commons.core.operations.IOperationMonitor;
import org.eclipse.mylyn.commons.core.operations.OperationUtil;
import org.eclipse.mylyn.commons.net.AuthenticationCredentials;
import org.eclipse.mylyn.commons.net.WebUtil;
import org.eclipse.mylyn.internal.commons.net.http.CommonGetMethod3;
import org.eclipse.mylyn.internal.commons.net.http.CommonHeadMethod3;
import org.eclipse.mylyn.internal.commons.net.http.CommonPostMethod3;
/**
* @author Steffen Pingel
* @since 3.7
*/
public abstract class HttpOperation3<T> {
private final CommonHttpClient3 client;
public HttpOperation3(CommonHttpClient3 client) {
this.client = client;
}
protected CommonHttpMethod3 createGetMethod(String requestPath) {
return new CommonGetMethod3(requestPath);
}
protected CommonHttpMethod3 createPostMethod(String requestPath) {
return new CommonPostMethod3(requestPath);
}
protected CommonHttpMethod3 createHeadMethod(String requestPath) {
return new CommonHeadMethod3(requestPath);
}
protected int execute(HttpMethod method, IOperationMonitor monitor) throws IOException {
monitor = OperationUtil.convert(monitor);
// force authentication
if (needsAuthentication()) {
client.authenticate(monitor);
}
// first attempt
int code = executeInternal(method, monitor);
if (needsReauthentication(code, monitor)) {
WebUtil.releaseConnection((HttpMethodBase) method, monitor);
client.authenticate(monitor);
// second attempt
return executeInternal(method, monitor);
} else {
return code;
}
}
private int executeInternal(HttpMethod method, IOperationMonitor monitor) throws IOException {
int code;
try {
code = WebUtil.execute(client.getHttpClient(), client.getHostConfiguration(monitor), method, monitor);
} catch (IOException e) {
WebUtil.releaseConnection((HttpMethodBase) method, monitor);
throw e;
} catch (RuntimeException e) {
WebUtil.releaseConnection((HttpMethodBase) method, monitor);
throw e;
}
return code;
}
protected final CommonHttpClient3 getClient() {
return client;
}
protected boolean hasCredentials(AuthenticationCredentials credentials) {
return credentials != null;
}
protected boolean needsAuthentication() {
return false;
}
private boolean needsReauthentication(int code, IOperationMonitor monitor) throws IOException {
return client.needsReauthentication(code, monitor);
}
}
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