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package org.fedoraproject.maven.artifact.repository;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Hashtable;
import java.util.StringTokenizer;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import org.w3c.dom.*;
public class MavenJPackageDepmap {
private static class ArtifactDefinition {
String groupId = null;
String artifactId = null;
String version = null;
}
private static MavenJPackageDepmap instance;
private static Hashtable<String, String> jppArtifactMap;
private MavenJPackageDepmap() {
jppArtifactMap = new Hashtable<String,String>();
buildJppArtifactMap();
}
public static MavenJPackageDepmap getInstance() {
if (instance == null) {
instance = new MavenJPackageDepmap();
}
return instance;
}
public Hashtable<String, String> getMappedInfo(Hashtable<String, String> mavenDep) {
return getMappedInfo((String) mavenDep.get("group"),
(String) mavenDep.get("artifact"),
(String) mavenDep.get("version"));
}
public Hashtable<String, String> getMappedInfo(String groupId, String artifactId, String version) {
Hashtable<String, String> jppDep;
String idToCheck, jppCombination;
if (System.getProperty("maven2.ignore.versions") == null && System.getProperty("maven2.jpp.mode") == null) {
idToCheck = groupId+","+artifactId+","+version;
} else {
idToCheck = groupId+","+artifactId;
}
jppCombination = (String) jppArtifactMap.get(idToCheck);
//System.err.println("*** " + groupId+","+artifactId+","+version + " => " + jppCombination);
jppDep = new Hashtable<String, String>();
if (jppCombination != null && jppCombination != "") {
StringTokenizer st = new StringTokenizer(jppCombination, ",");
jppDep.put("group", st.nextToken());
jppDep.put("artifact",st.nextToken());
jppDep.put("version",st.nextToken());
} else {
jppDep.put("group", groupId);
jppDep.put("artifact", artifactId);
jppDep.put("version", version);
}
return jppDep;
}
/**
* Returns whether or not the given dependency should be dropped.
*/
public boolean shouldEliminate(String groupId, String artifactId, String version) {
String idToCheck;
if (System.getProperty("maven2.ignore.versions") == null && System.getProperty("maven2.jpp.mode") == null) {
idToCheck = groupId+","+artifactId+","+version;
} else {
idToCheck = groupId+","+artifactId;
}
return jppArtifactMap.get(idToCheck) != null && jppArtifactMap.get(idToCheck).equals("");
}
private static void buildJppArtifactMap() {
if (System.getProperty("maven2.ignore.versions") != null || System.getProperty("maven2.jpp.mode") != null) {
debug("Processing file: /usr/share/java-utils/xml/maven2-versionless-depmap.xml");
processDepmapFile("/etc/maven/maven2-versionless-depmap.xml");
}
debug("Processing file: /usr/share/java-utils/xml/maven2-depmap.xml");
processDepmapFile("/etc/maven/maven2-depmap.xml");
String customFileName = System.getProperty("maven2.jpp.depmap.file", null);
if (customFileName != null) {
debug("Processing file: " + customFileName);
processDepmapFile(customFileName);
}
}
private static void processDepmapFile(String fileName) {
Document mapDocument;
debug("Loading depmap file: " + fileName);
try {
DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
fact.setNamespaceAware(true);
DocumentBuilder builder = fact.newDocumentBuilder();
mapDocument = builder.parse(fileName);
} catch (FileNotFoundException fnfe) {
System.err.println("ERROR: Unable to find map file: " + fileName);
fnfe.printStackTrace();
return;
} catch (IOException ioe) {
System.err.println("ERROR: I/O exception occured when opening map file");
ioe.printStackTrace();
return;
} catch (ParserConfigurationException pce) {
System.err.println("ERROR: Parsing of depmap file failed - configuration");
pce.printStackTrace();
return;
} catch (SAXException se) {
System.err.println("ERROR: Parsing of depmap file failed");
se.printStackTrace();
return;
}
NodeList depNodes = (NodeList) mapDocument.getElementsByTagName("dependency");
for (int i = 0; i < depNodes.getLength(); i++) {
Element depNode = (Element) depNodes.item(i);
NodeList mavenNodeList = (NodeList) depNode.getElementsByTagName("maven");
if (mavenNodeList.getLength() != 1) {
debug("Number of maven sub-elements is not 1. Bailing from depmap generation");
debug("Maven node: " + depNode.getTextContent());
return;
}
ArtifactDefinition mavenAD = getArtifactDefinition((Element) mavenNodeList.item(0));
ArtifactDefinition jppAD = null;
NodeList jppNodeList = (NodeList) depNode.getElementsByTagName("jpp");
if (jppNodeList.getLength() == 1) {
jppAD = getArtifactDefinition((Element) jppNodeList.item(0));
if (System.getProperty("maven2.ignore.versions") == null && System.getProperty("maven2.jpp.mode") == null) {
debug("*** Adding: " + mavenAD.groupId + "," + mavenAD.artifactId + "," + mavenAD.version + " => "
+ jppAD.groupId + "," + jppAD.artifactId + "," + jppAD.version + " to map...");
jppArtifactMap.put(mavenAD.groupId + "," + mavenAD.artifactId + "," + mavenAD.version,
jppAD.groupId + "," + jppAD.artifactId + "," + jppAD.version);
} else {
debug("*** Adding: " + mavenAD.groupId+"," + mavenAD.artifactId + " => "
+ jppAD.groupId + "," + jppAD.artifactId + "," + jppAD.version + " to map...");
jppArtifactMap.put(mavenAD.groupId+","+mavenAD.artifactId,
jppAD.groupId + "," + jppAD.artifactId + "," + jppAD.version);
}
} else {
debug("Number of jpp sub-elements is not 1. Dropping dependency");
debug("*** Adding: " + mavenAD.groupId+","+mavenAD.artifactId+"," + " => " + "JPP/maven2,empty-dep,"+mavenAD.version + " to map...");
jppArtifactMap.put(mavenAD.groupId+","+mavenAD.artifactId, "JPP/maven2,empty-dep,"+mavenAD.version);
}
}
}
private static ArtifactDefinition getArtifactDefinition(Element element) {
ArtifactDefinition ad = new ArtifactDefinition();
NodeList nodes = element.getElementsByTagName("groupId");
if (nodes.getLength() != 1) {
debug("groupId definition not found in depmap");
return null;
}
ad.groupId = nodes.item(0).getTextContent();
nodes = element.getElementsByTagName("artifactId");
if (nodes.getLength() != 1) {
debug("artifactId definition not found in depmap");
return null;
}
ad.artifactId = nodes.item(0).getTextContent();
nodes = element.getElementsByTagName("version");
if (nodes.getLength() != 1) {
ad.version = "DUMMY_VER";
} else {
ad.version = nodes.item(0).getTextContent();
}
return ad;
}
private static void debug(String msg) {
if (System.getProperty("maven2.jpp.debug") != null)
System.err.println(msg);
}
}
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