| /* |
| * 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.ivy.plugins.parser.m2; |
| |
| import java.io.BufferedInputStream; |
| import java.io.FilterInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.LineNumberReader; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.ivy.core.IvyPatternHelper; |
| import org.apache.ivy.core.module.descriptor.License; |
| import org.apache.ivy.core.module.id.ModuleId; |
| import org.apache.ivy.core.module.id.ModuleRevisionId; |
| import org.apache.ivy.plugins.repository.Resource; |
| import org.apache.ivy.util.XMLHelper; |
| import org.apache.ivy.util.url.URLHandlerRegistry; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| import org.xml.sax.EntityResolver; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * Provides the method to read some data out of the DOM tree of a pom file. |
| */ |
| public class PomReader { |
| |
| private static final String PACKAGING = "packaging"; |
| |
| private static final String DEPENDENCY = "dependency"; |
| |
| private static final String DEPENDENCIES = "dependencies"; |
| |
| private static final String DEPENDENCY_MGT = "dependencyManagement"; |
| |
| private static final String PROJECT = "project"; |
| |
| private static final String MODEL = "model"; |
| |
| private static final String GROUP_ID = "groupId"; |
| |
| private static final String ARTIFACT_ID = "artifactId"; |
| |
| private static final String VERSION = "version"; |
| |
| private static final String DESCRIPTION = "description"; |
| |
| private static final String HOMEPAGE = "url"; |
| |
| private static final String LICENSES = "licenses"; |
| |
| private static final String LICENSE = "license"; |
| |
| private static final String LICENSE_NAME = "name"; |
| |
| private static final String LICENSE_URL = "url"; |
| |
| private static final String PARENT = "parent"; |
| |
| private static final String SCOPE = "scope"; |
| |
| private static final String CLASSIFIER = "classifier"; |
| |
| private static final String OPTIONAL = "optional"; |
| |
| private static final String EXCLUSIONS = "exclusions"; |
| |
| private static final String EXCLUSION = "exclusion"; |
| |
| private static final String DISTRIBUTION_MGT = "distributionManagement"; |
| |
| private static final String RELOCATION = "relocation"; |
| |
| private static final String PROPERTIES = "properties"; |
| |
| private static final String PLUGINS = "plugins"; |
| |
| private static final String PLUGIN = "plugin"; |
| |
| private static final String TYPE = "type"; |
| |
| private HashMap<String, String> properties = new HashMap<String, String>(); |
| |
| private final Element projectElement; |
| |
| private final Element parentElement; |
| |
| public PomReader(URL descriptorURL, Resource res) throws IOException, SAXException { |
| InputStream stream = new AddDTDFilterInputStream(URLHandlerRegistry.getDefault() |
| .openStream(descriptorURL)); |
| InputSource source = new InputSource(stream); |
| source.setSystemId(XMLHelper.toSystemId(descriptorURL)); |
| try { |
| Document pomDomDoc = XMLHelper.parseToDom(source, new EntityResolver() { |
| public InputSource resolveEntity(String publicId, String systemId) |
| throws SAXException, IOException { |
| if ((systemId != null) && systemId.endsWith("m2-entities.ent")) { |
| return new InputSource(PomReader.class |
| .getResourceAsStream("m2-entities.ent")); |
| } |
| return null; |
| } |
| }); |
| projectElement = pomDomDoc.getDocumentElement(); |
| if (!PROJECT.equals(projectElement.getNodeName()) |
| && !MODEL.equals(projectElement.getNodeName())) { |
| throw new SAXParseException("project must be the root tag", res.getName(), |
| res.getName(), 0, 0); |
| } |
| parentElement = getFirstChildElement(projectElement, PARENT); |
| } finally { |
| try { |
| stream.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| } |
| |
| public boolean hasParent() { |
| return parentElement != null; |
| } |
| |
| /** |
| * Add a property if not yet set and value is not null. This garantee that property keep the |
| * first value that is put on it and that the properties are never null. |
| */ |
| public void setProperty(String prop, String val) { |
| if (!properties.containsKey(prop) && val != null) { |
| properties.put(prop, val); |
| } |
| } |
| |
| public String getGroupId() { |
| String groupId = getFirstChildText(projectElement, GROUP_ID); |
| if (groupId == null) { |
| groupId = getFirstChildText(parentElement, GROUP_ID); |
| } |
| return replaceProps(groupId); |
| |
| } |
| |
| public String getParentGroupId() { |
| String groupId = getFirstChildText(parentElement, GROUP_ID); |
| if (groupId == null) { |
| groupId = getFirstChildText(projectElement, GROUP_ID); |
| } |
| return replaceProps(groupId); |
| } |
| |
| public String getArtifactId() { |
| String val = getFirstChildText(projectElement, ARTIFACT_ID); |
| if (val == null) { |
| val = getFirstChildText(parentElement, ARTIFACT_ID); |
| } |
| return replaceProps(val); |
| } |
| |
| public String getParentArtifactId() { |
| String val = getFirstChildText(parentElement, ARTIFACT_ID); |
| if (val == null) { |
| val = getFirstChildText(projectElement, ARTIFACT_ID); |
| } |
| return replaceProps(val); |
| } |
| |
| public String getVersion() { |
| String val = getFirstChildText(projectElement, VERSION); |
| if (val == null) { |
| val = getFirstChildText(parentElement, VERSION); |
| } |
| return replaceProps(val); |
| } |
| |
| public String getParentVersion() { |
| String val = getFirstChildText(parentElement, VERSION); |
| if (val == null) { |
| val = getFirstChildText(projectElement, VERSION); |
| } |
| return replaceProps(val); |
| } |
| |
| public String getPackaging() { |
| String val = getFirstChildText(projectElement, PACKAGING); |
| if (val == null) { |
| val = "jar"; |
| } |
| return val; |
| } |
| |
| public String getHomePage() { |
| String val = getFirstChildText(projectElement, HOMEPAGE); |
| if (val == null) { |
| val = ""; |
| } |
| return val; |
| } |
| |
| public String getDescription() { |
| String val = getFirstChildText(projectElement, DESCRIPTION); |
| if (val == null) { |
| val = ""; |
| } |
| return val.trim(); |
| } |
| |
| public License[] getLicenses() { |
| Element licenses = getFirstChildElement(projectElement, LICENSES); |
| if (licenses == null) { |
| return new License[0]; |
| } |
| licenses.normalize(); |
| List<License> lics = new ArrayList<License>(); |
| for (Element license : getAllChilds(licenses)) { |
| if (LICENSE.equals(license.getNodeName())) { |
| String name = getFirstChildText(license, LICENSE_NAME); |
| String url = getFirstChildText(license, LICENSE_URL); |
| |
| if ((name == null) && (url == null)) { |
| // move to next license |
| continue; |
| } |
| |
| if (name == null) { |
| // The license name is required in Ivy but not in a POM! |
| name = "Unknown License"; |
| } |
| |
| lics.add(new License(name, url)); |
| } |
| } |
| return lics.toArray(new License[lics.size()]); |
| } |
| |
| public ModuleRevisionId getRelocation() { |
| Element distrMgt = getFirstChildElement(projectElement, DISTRIBUTION_MGT); |
| Element relocation = getFirstChildElement(distrMgt, RELOCATION); |
| if (relocation == null) { |
| return null; |
| } else { |
| String relocGroupId = getFirstChildText(relocation, GROUP_ID); |
| String relocArtId = getFirstChildText(relocation, ARTIFACT_ID); |
| String relocVersion = getFirstChildText(relocation, VERSION); |
| relocGroupId = relocGroupId == null ? getGroupId() : relocGroupId; |
| relocArtId = relocArtId == null ? getArtifactId() : relocArtId; |
| relocVersion = relocVersion == null ? getVersion() : relocVersion; |
| return ModuleRevisionId.newInstance(relocGroupId, relocArtId, relocVersion); |
| } |
| } |
| |
| public List<PomDependencyData> getDependencies() { |
| Element dependenciesElement = getFirstChildElement(projectElement, DEPENDENCIES); |
| LinkedList<PomDependencyData> dependencies = new LinkedList<PomDependencyData>(); |
| if (dependenciesElement != null) { |
| NodeList childs = dependenciesElement.getChildNodes(); |
| for (int i = 0; i < childs.getLength(); i++) { |
| Node node = childs.item(i); |
| if (node instanceof Element && DEPENDENCY.equals(node.getNodeName())) { |
| dependencies.add(new PomDependencyData((Element) node)); |
| } |
| } |
| } |
| return dependencies; |
| } |
| |
| public List<PomDependencyMgt> getDependencyMgt() { |
| Element dependenciesElement = getFirstChildElement(projectElement, DEPENDENCY_MGT); |
| dependenciesElement = getFirstChildElement(dependenciesElement, DEPENDENCIES); |
| LinkedList<PomDependencyMgt> dependencies = new LinkedList<PomDependencyMgt>(); |
| if (dependenciesElement != null) { |
| NodeList childs = dependenciesElement.getChildNodes(); |
| for (int i = 0; i < childs.getLength(); i++) { |
| Node node = childs.item(i); |
| if (node instanceof Element && DEPENDENCY.equals(node.getNodeName())) { |
| dependencies.add(new PomDependencyMgtElement((Element) node)); |
| } |
| } |
| } |
| return dependencies; |
| } |
| |
| public class PomDependencyMgtElement implements PomDependencyMgt { |
| private final Element depElement; |
| |
| public PomDependencyMgtElement(PomDependencyMgtElement copyFrom) { |
| this(copyFrom.depElement); |
| } |
| |
| PomDependencyMgtElement(Element depElement) { |
| this.depElement = depElement; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.ivy.plugins.parser.m2.PomDependencyMgt#getGroupId() |
| */ |
| public String getGroupId() { |
| String val = getFirstChildText(depElement, GROUP_ID); |
| return replaceProps(val); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.ivy.plugins.parser.m2.PomDependencyMgt#getArtifaceId() |
| */ |
| public String getArtifactId() { |
| String val = getFirstChildText(depElement, ARTIFACT_ID); |
| return replaceProps(val); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.ivy.plugins.parser.m2.PomDependencyMgt#getVersion() |
| */ |
| public String getVersion() { |
| String val = getFirstChildText(depElement, VERSION); |
| return replaceProps(val); |
| } |
| |
| public String getScope() { |
| String val = getFirstChildText(depElement, SCOPE); |
| return replaceProps(val); |
| } |
| |
| public List<ModuleId> getExcludedModules() { |
| Element exclusionsElement = getFirstChildElement(depElement, EXCLUSIONS); |
| LinkedList<ModuleId> exclusions = new LinkedList<ModuleId>(); |
| if (exclusionsElement != null) { |
| NodeList childs = exclusionsElement.getChildNodes(); |
| for (int i = 0; i < childs.getLength(); i++) { |
| Node node = childs.item(i); |
| if (node instanceof Element && EXCLUSION.equals(node.getNodeName())) { |
| String groupId = getFirstChildText((Element) node, GROUP_ID); |
| String artifactId = getFirstChildText((Element) node, ARTIFACT_ID); |
| if ((groupId != null) && (artifactId != null)) { |
| exclusions.add(ModuleId.newInstance(groupId, artifactId)); |
| } |
| } |
| } |
| } |
| return exclusions; |
| } |
| } |
| |
| public List<PomPluginElement> getPlugins() { |
| LinkedList<PomPluginElement> plugins = new LinkedList<PomPluginElement>(); |
| |
| Element buildElement = getFirstChildElement(projectElement, "build"); |
| if (buildElement == null) { |
| return plugins; |
| } |
| |
| Element pluginsElement = getFirstChildElement(buildElement, PLUGINS); |
| if (pluginsElement != null) { |
| NodeList childs = pluginsElement.getChildNodes(); |
| for (int i = 0; i < childs.getLength(); i++) { |
| Node node = childs.item(i); |
| if (node instanceof Element && PLUGIN.equals(node.getNodeName())) { |
| plugins.add(new PomPluginElement((Element) node)); |
| } |
| } |
| } |
| return plugins; |
| } |
| |
| public class PomPluginElement implements PomDependencyMgt { |
| private Element pluginElement; |
| |
| PomPluginElement(Element pluginElement) { |
| this.pluginElement = pluginElement; |
| } |
| |
| public String getGroupId() { |
| String val = getFirstChildText(pluginElement, GROUP_ID); |
| return replaceProps(val); |
| } |
| |
| public String getArtifactId() { |
| String val = getFirstChildText(pluginElement, ARTIFACT_ID); |
| return replaceProps(val); |
| } |
| |
| public String getVersion() { |
| String val = getFirstChildText(pluginElement, VERSION); |
| return replaceProps(val); |
| } |
| |
| public String getScope() { |
| return null; // not used |
| } |
| |
| public List<ModuleId> getExcludedModules() { |
| return Collections.emptyList(); // probably not used? |
| } |
| } |
| |
| public class PomDependencyData extends PomDependencyMgtElement { |
| private final Element depElement; |
| |
| public PomDependencyData(PomDependencyData copyFrom) { |
| this(copyFrom.depElement); |
| } |
| |
| PomDependencyData(Element depElement) { |
| super(depElement); |
| this.depElement = depElement; |
| } |
| |
| @Override |
| public String getScope() { |
| String val = getFirstChildText(depElement, SCOPE); |
| return replaceProps(val); |
| } |
| |
| public String getClassifier() { |
| String val = getFirstChildText(depElement, CLASSIFIER); |
| return replaceProps(val); |
| } |
| |
| public String getType() { |
| String val = getFirstChildText(depElement, TYPE); |
| return replaceProps(val); |
| } |
| |
| public boolean isOptional() { |
| Element e = getFirstChildElement(depElement, OPTIONAL); |
| return (e != null) && "true".equalsIgnoreCase(getTextContent(e)); |
| } |
| |
| } |
| |
| /** |
| * @return the content of the properties tag into the pom. |
| */ |
| public Map<String, String> getPomProperties() { |
| Map<String, String> pomProperties = new HashMap<String, String>(); |
| Element propsEl = getFirstChildElement(projectElement, PROPERTIES); |
| if (propsEl != null) { |
| propsEl.normalize(); |
| } |
| for (Element prop : getAllChilds(propsEl)) { |
| pomProperties.put(prop.getNodeName(), getTextContent(prop)); |
| } |
| return pomProperties; |
| } |
| |
| private String replaceProps(String val) { |
| if (val == null) { |
| return null; |
| } else { |
| return IvyPatternHelper.substituteVariables(val, properties).trim(); |
| } |
| } |
| |
| private static String getTextContent(Element element) { |
| StringBuffer result = new StringBuffer(); |
| |
| NodeList childNodes = element.getChildNodes(); |
| for (int i = 0; i < childNodes.getLength(); i++) { |
| Node child = childNodes.item(i); |
| |
| switch (child.getNodeType()) { |
| case Node.CDATA_SECTION_NODE: |
| case Node.TEXT_NODE: |
| result.append(child.getNodeValue()); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| return result.toString(); |
| } |
| |
| private static String getFirstChildText(Element parentElem, String name) { |
| Element node = getFirstChildElement(parentElem, name); |
| if (node != null) { |
| return getTextContent(node); |
| } else { |
| return null; |
| } |
| } |
| |
| private static Element getFirstChildElement(Element parentElem, String name) { |
| if (parentElem == null) { |
| return null; |
| } |
| NodeList childs = parentElem.getChildNodes(); |
| for (int i = 0; i < childs.getLength(); i++) { |
| Node node = childs.item(i); |
| if (node instanceof Element && name.equals(node.getNodeName())) { |
| return (Element) node; |
| } |
| } |
| return null; |
| } |
| |
| private static List<Element> getAllChilds(Element parent) { |
| List<Element> r = new LinkedList<Element>(); |
| if (parent != null) { |
| NodeList childs = parent.getChildNodes(); |
| for (int i = 0; i < childs.getLength(); i++) { |
| Node node = childs.item(i); |
| if (node instanceof Element) { |
| r.add((Element) node); |
| } |
| } |
| } |
| return r; |
| } |
| |
| private static final class AddDTDFilterInputStream extends FilterInputStream { |
| private static final int MARK = 10000; |
| |
| private static final String DOCTYPE = "<!DOCTYPE project SYSTEM \"m2-entities.ent\">\n"; |
| |
| private int count; |
| |
| private byte[] prefix = DOCTYPE.getBytes(); |
| |
| private AddDTDFilterInputStream(InputStream in) throws IOException { |
| super(new BufferedInputStream(in)); |
| |
| this.in.mark(MARK); |
| |
| // TODO: we should really find a better solution for this... |
| // maybe we could use a FilterReader instead of a FilterInputStream? |
| int byte1 = this.in.read(); |
| int byte2 = this.in.read(); |
| int byte3 = this.in.read(); |
| |
| if (byte1 == 239 && byte2 == 187 && byte3 == 191) { |
| // skip the UTF-8 BOM |
| this.in.mark(MARK); |
| } else { |
| this.in.reset(); |
| } |
| |
| int bytesToSkip = 0; |
| LineNumberReader reader = new LineNumberReader(new InputStreamReader(this.in, "UTF-8"), |
| 100); |
| String firstLine = reader.readLine(); |
| if (firstLine != null) { |
| String trimmed = firstLine.trim(); |
| if (trimmed.startsWith("<?xml ")) { |
| int endIndex = trimmed.indexOf("?>"); |
| String xmlDecl = trimmed.substring(0, endIndex + 2); |
| prefix = (xmlDecl + "\n" + DOCTYPE).getBytes(); |
| bytesToSkip = xmlDecl.getBytes().length; |
| } |
| } else { |
| prefix = new byte[0]; |
| } |
| |
| this.in.reset(); |
| for (int i = 0; i < bytesToSkip; i++) { |
| this.in.read(); |
| } |
| } |
| |
| @Override |
| public int read() throws IOException { |
| if (count < prefix.length) { |
| return prefix[count++]; |
| } |
| |
| int result = super.read(); |
| return result; |
| } |
| |
| @Override |
| public int read(byte[] b, int off, int len) throws IOException { |
| if (b == null) { |
| throw new NullPointerException(); |
| } else if ((off < 0) || (off > b.length) || (len < 0) || ((off + len) > b.length) |
| || ((off + len) < 0)) { |
| throw new IndexOutOfBoundsException(); |
| } else if (len == 0) { |
| return 0; |
| } |
| |
| int nbrBytesCopied = 0; |
| |
| if (count < prefix.length) { |
| int nbrBytesFromPrefix = Math.min(prefix.length - count, len); |
| System.arraycopy(prefix, count, b, off, nbrBytesFromPrefix); |
| nbrBytesCopied = nbrBytesFromPrefix; |
| } |
| |
| if (nbrBytesCopied < len) { |
| nbrBytesCopied += in.read(b, off + nbrBytesCopied, len - nbrBytesCopied); |
| } |
| |
| count += nbrBytesCopied; |
| return nbrBytesCopied; |
| } |
| } |
| |
| } |