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/*
* Copyright 2001-2004 Apache Software Foundation
*
* 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.
*
*/
package org.apache.tools.ant.taskdefs.optional.ide;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Enumeration;
import java.util.Vector;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
/**
* Helper class for VAJ tasks. Holds Workspace singleton and
* wraps IvjExceptions into BuildExceptions
*
* @author Wolf Siberski, TUI Infotec GmbH
* @author Martin Landers, Beck et al. projects
*/
class VAJRemoteUtil implements VAJUtil {
// calling task
Task caller;
// VAJ remote tool server
String remoteServer;
public VAJRemoteUtil(Task caller, String remote) {
this.caller = caller;
this.remoteServer = remote;
}
/**
* export the array of Packages
*/
public void exportPackages(File destDir,
String[] includePatterns, String[] excludePatterns,
boolean exportClasses, boolean exportDebugInfo,
boolean exportResources, boolean exportSources,
boolean useDefaultExcludes, boolean overwrite) {
try {
String request = "http://" + remoteServer + "/servlet/vajexport?"
+ VAJExportServlet.WITH_DEBUG_INFO + "=" + exportDebugInfo + "&"
+ VAJExportServlet.OVERWRITE_PARAM + "=" + overwrite + "&"
+ assembleImportExportParams(destDir,
includePatterns, excludePatterns,
exportClasses, exportResources,
exportSources, useDefaultExcludes);
sendRequest(request);
} catch (Exception ex) {
throw new BuildException(ex);
}
}
/**
* Do the import.
*/
public void importFiles(
String importProject, File srcDir,
String[] includePatterns, String[] excludePatterns,
boolean importClasses, boolean importResources,
boolean importSources, boolean useDefaultExcludes) {
try {
String request = "http://" + remoteServer + "/servlet/vajimport?"
+ VAJImportServlet.PROJECT_NAME_PARAM + "="
+ importProject + "&"
+ assembleImportExportParams(srcDir,
includePatterns, excludePatterns,
importClasses, importResources,
importSources, useDefaultExcludes);
sendRequest(request);
} catch (Exception ex) {
throw new BuildException(ex);
}
}
/**
* Assemble string for parameters common for import and export
* Helper method to remove double code.
*/
private String assembleImportExportParams(
File dir,
String[] includePatterns, String[] excludePatterns,
boolean includeClasses, boolean includeResources,
boolean includeSources, boolean useDefaultExcludes) {
String result =
VAJToolsServlet.DIR_PARAM + "="
+ URLEncoder.encode(dir.getPath()) + "&"
+ VAJToolsServlet.CLASSES_PARAM + "=" + includeClasses + "&"
+ VAJToolsServlet.RESOURCES_PARAM + "=" + includeResources + "&"
+ VAJToolsServlet.SOURCES_PARAM + "=" + includeSources + "&"
+ VAJToolsServlet.DEFAULT_EXCLUDES_PARAM + "=" + useDefaultExcludes;
if (includePatterns != null) {
for (int i = 0; i < includePatterns.length; i++) {
result = result + "&" + VAJExportServlet.INCLUDE_PARAM + "="
+ URLEncoder.encode(includePatterns[i]);
}
}
if (excludePatterns != null) {
for (int i = 0; i < excludePatterns.length; i++) {
result = result + "&" + VAJExportServlet.EXCLUDE_PARAM + "="
+ URLEncoder.encode(excludePatterns[i]);
}
}
return result;
}
/**
* Load specified projects.
*/
public void loadProjects(Vector projectDescriptions) {
try {
String request = "http://" + remoteServer + "/servlet/vajload?";
String delimiter = "";
for (Enumeration e = projectDescriptions.elements(); e.hasMoreElements();) {
VAJProjectDescription pd = (VAJProjectDescription) e.nextElement();
request = request
+ delimiter + VAJLoadServlet.PROJECT_NAME_PARAM
+ "=" + pd.getName().replace(' ', '+')
+ "&" + VAJLoadServlet.VERSION_PARAM
+ "=" + pd.getVersion().replace(' ', '+');
//the first param needs no delimiter, but all other
delimiter = "&";
}
sendRequest(request);
} catch (Exception ex) {
throw new BuildException(ex);
}
}
/**
* logs a message.
*/
public void log(String msg, int level) {
caller.log(msg, level);
}
/**
* Sends a servlet request.
*/
private void sendRequest(String request) {
boolean requestFailed = false;
try {
log("Request: " + request, MSG_DEBUG);
//must be HTTP connection
URL requestUrl = new URL(request);
HttpURLConnection connection =
(HttpURLConnection) requestUrl.openConnection();
InputStream is = null;
// retry three times
for (int i = 0; i < 3; i++) {
try {
is = connection.getInputStream();
break;
} catch (IOException ex) {
// ignore
}
}
if (is == null) {
log("Can't get " + request, MSG_ERR);
throw new BuildException("Couldn't execute " + request);
}
// log the response
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line = br.readLine();
while (line != null) {
int level = MSG_ERR;
try {
// the first char of each line contains the log level
level = Integer.parseInt(line.substring(0, 1));
if (level == MSG_ERR) {
requestFailed = true;
}
} catch (Exception e) {
log("Response line doesn't contain log level!", MSG_ERR);
}
log(line.substring(2), level);
line = br.readLine();
}
} catch (IOException ex) {
log("Error sending tool request to VAJ" + ex, MSG_ERR);
throw new BuildException("Couldn't execute " + request);
}
if (requestFailed) {
throw new BuildException("VAJ tool request failed");
}
}
}
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