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/*******************************************************************************
* Copyright (c) 2009 Red Hat, Inc.
* 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:
* Red Hat Incorporated - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.rpmstubby.model;
import java.util.ArrayList;
import java.util.List;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Gives easy access to data from the maven pom.xml file.
*
*/
public class PomModel {
private Document docroot;
private XPath xpath;
/**
* Instantiates the model with the given XML document and preparing the
* XPath evaluation environment.
*
* @param docroot
* The document to query.
*/
public PomModel(Document docroot) {
this.docroot = docroot;
xpath = XPathFactory.newInstance().newXPath();
}
/**
* Returns the proposed package name.
*
* @return The proposed package name.
*/
public String getPackageName() {
// TODO make it return names suitable for Fedora's package naming
// guidelines.
return xpathEval("/project/artifactId");
}
/**
* Returns the artifact id xpath:/project/artifactId .
*
* @return The artifact id.
*/
public String getArtifactId() {
return xpathEval("/project/artifactId");
}
/**
* Returns the group id (xpath:/project/groupId) or the groupId of the
* parent (xpath:/project/parent/groupId) if groupId is not present.
*
* @return The group id.
*/
public String getGroupId() {
String groupId = xpathEval("/project/groupId");
if (groupId.equals("")) {
groupId = xpathEval("/project/parent/groupId");
}
return groupId;
}
/**
* Returns the summary (xpath:/project/name). Maven project name is verbose
* and it corresponds to the RPM specfile Summary tag.
*
* @return The summary.
*/
public String getSummary() {
return xpathEval("/project/name");
}
/**
* Returns the project version (xpath:/project/version) or the parent version if
* version is not present.
*
* @return The version.
*/
public String getVersion() {
String version = xpathEval("/project/version");
if (version.equals("")) {
version = xpathEval("/project/parent/version");
}
return version;
}
/**
* Returns the license (xpath:/project/licenses/license/name).
*
* @return The license name.
*/
public String getLicense() {
// TODO make it return suitable license names.
return xpathEval("/project/licenses/license/name");
}
/**
* Returns the URL (xpath:/project/url) or (xpath:/project/organization/url).
*
* @return The project url.
*/
public String getURL() {
String url = xpathEval("/project/url");
if (url.equals("")) {
url = xpathEval("/project/organization/url");
}
return url;
}
/**
* Returns the project description (xpath:/project/description).
*
* @return The project description.
*/
public String getDescription() {
getDependencies();
return xpathEval("/project/description");
}
/**
* Returns the dependencies.
* @return All the dependencies.
*/
public List<String> getDependencies() {
List<String> dependencies = new ArrayList<String>();
NodeList nodes = xpathEvalNodes("/project/dependencies/dependency/artifactId");
for (int i = 0; i < nodes.getLength(); i++) {
Node node = nodes.item(i);
dependencies.add(node.getTextContent());
}
return dependencies;
}
private String xpathEval(String path) {
String result = "";
try {
result = xpath.evaluate(path, docroot);
} catch (XPathExpressionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
private NodeList xpathEvalNodes(String path) {
NodeList result = null;
try {
result = (NodeList) xpath.evaluate(path, docroot,
XPathConstants.NODESET);
} catch (XPathExpressionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
}
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