/**
 * License Agreement.
 *
 * Rich Faces - Natural Ajax for Java Server Faces (JSF)
 *
 * Copyright (C) 2007 Exadel, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1 as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 */

package org.ajax4jsf.builder.mojo;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.ajax4jsf.builder.config.ParsingException;
import org.ajax4jsf.builder.xml.XMLBody;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
import org.apache.maven.artifact.resolver.ArtifactResolutionException;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.Parent;
import org.apache.maven.model.Resource;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.MavenProjectBuilder;
import org.apache.maven.project.ProjectBuildingException;
import org.apache.maven.shared.io.scan.ResourceInclusionScanner;
import org.apache.maven.shared.io.scan.SimpleResourceInclusionScanner;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.exception.MethodInvocationException;
import org.apache.velocity.exception.ParseErrorException;
import org.apache.velocity.exception.ResourceNotFoundException;
import org.codehaus.plexus.archiver.UnArchiver;
import org.codehaus.plexus.archiver.manager.ArchiverManager;
import org.codehaus.plexus.util.DirectoryScanner;

/**
 * This plugin assembly full components library from modules, included in parent
 * project. Steps to create library : 1. Got parent project, and check modules
 * included in them. 2. For every module , build project and got it properties.
 * 3. Resolve module artifact, check for "jar" type and include/exclude
 * criteria. for accepted modules, unpack it to classes directory, and put
 * config files in separate directories. 4. Append unpacked directory to
 * resources, included in result jar. 5. Merge all META-INF/faces-config.xml ,
 * *.tld, *.taglib.xml , resources-config.xml into ones. 6. append dependencies
 * of included projects to this.
 * 
 * @author shura
 * @goal assembly
 * @requiresDependencyResolution compile
 * @phase generate-resources
 */
public class AssemblyLibraryMojo extends AbstractCDKMojo {

	private static final String TEMPLATES_PREFIX = "/templates/";

	private static final String TEMPLATES12_PREFIX = "/templates12/";

	private static final String FACES_CONFIG_TEMPLATE = "faces-config.vm";

	private static final String RESOURCES_CONFIG_TEMPLATE = "resources-config.vm";

	private static final String TLD_TEMPLATE = "tld.vm";

	private static final String TAGLIB_TEMPLATE = "taglib.vm";

	/**
	 * Used to look up Artifacts in the remote repository.
	 * 
	 * @component
	 */
	private org.apache.maven.artifact.factory.ArtifactFactory factory;

	/**
	 * Used to look up Artifacts in the remote repository.
	 * 
	 * @component
	 */
	private org.apache.maven.artifact.resolver.ArtifactResolver resolver;

	/**
	 * The local repository.
	 * 
	 * @parameter expression="${localRepository}"
	 */
	private ArtifactRepository localRepository;

	/**
	 * To look up Archiver/UnArchiver implementations
	 * 
	 * @component
	 */
	private ArchiverManager archiverManager;

	/**
	 * Project builder
	 * 
	 * @component
	 */
	private MavenProjectBuilder mavenProjectBuilder;

	/**
	 * The reactor projects.
	 * 
	 * @parameter expression="${reactorProjects}"
	 * @required
	 * @readonly
	 */
	private List reactorProjects;

	/**
	 * The reactor projects.
	 * 
	 * @parameter expression="${project.parent}"
	 * @readonly
	 */
	private MavenProject parentProject;

	/**
	 * The directory for compiled classes.
	 * 
	 * @parameter expression="${project.build.directory}"
	 * @required
	 * @readonly
	 */
	private File buildDirectory;

	/**
	 * The directory for compiled classes.
	 * 
	 * @parameter expression="${project.build.directory}/pom.xml"
	 * @required
	 * @readonly
	 */
	private File generatedPom;

	/**
	 * The directory for compiled classes.
	 * 
	 * @parameter expression="${project.build.directory}/src"
	 * @required
	 * @readonly
	 */
	private File modulesSrc;

	/**
	 * @parameter
	 */
	private String templates;

	/**
	 * @parameter
	 */
	private String includeTld = "META-INF/*.tld";

	/**
	 * @parameter
	 */
	private String includeTaglib = "META-INF/*.taglib.xml";


	/**
	 * 
	 */
	public AssemblyLibraryMojo() {
		// used for plexus init.
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.apache.maven.plugin.Mojo#execute()
	 */
	public void execute() throws MojoExecutionException, MojoFailureException {
		setupParentProject();
		checkLibraryConfig();
		if (null == templates) {
			templates = Library.JSF12.equals(library.getJsfVersion()) ? TEMPLATES12_PREFIX
					: TEMPLATES_PREFIX;
		}
		List models = extractModules();
		mergeFacesConfig(models);
		File resourcesConfig = new File(outputDirectory,
				"META-INF/resources-config.xml");
		mergeXML(models, "META-INF/resources-config.xml",
				RESOURCES_CONFIG_TEMPLATE, "/resource-config/resource",
				"name/text()", new VelocityContext(), resourcesConfig);
		if (null != library.getTaglibs() && library.getTaglibs().length > 0) {
			for (int i = 0; i < library.getTaglibs().length; i++) {
				Taglib taglib = library.getTaglibs()[i];
				List taglibModels;
				if (taglib.getIncludeModules() == null
						&& taglib.getExcludeModules() == null) {
					taglibModels = models;
				} else {
					String[] includeModules = null;
					String[] excludeModules = null;
					if (null != taglib.getIncludeModules()) {
						includeModules = taglib.getIncludeModules().split(",");
						Arrays.sort(includeModules);
					}
					if (null != taglib.getExcludeModules()) {
						excludeModules = taglib.getExcludeModules().split(",");
						Arrays.sort(excludeModules);
					}
					taglibModels = new ArrayList();
					for (Iterator iterator = models.iterator(); iterator
							.hasNext();) {
						Model model = (Model) iterator.next();
						String id = model.getArtifactId();
						if((includeModules == null || Arrays.binarySearch(includeModules, id)>=0)&&(excludeModules == null || Arrays.binarySearch(excludeModules, id)<0)){
							taglibModels.add(model);
						}
					}
				}
				generateTaglib(taglibModels, taglib);
			}
		} else {
			generateTaglib(models, library.getTaglib());
		}
	}

	/**
	 * @param models
	 * @throws MojoExecutionException
	 */
	private void generateTaglib(List models, Taglib taglib)
			throws MojoExecutionException {
		VelocityContext taglibContext = new VelocityContext();
		taglibContext.put("taglib", taglib);
		// Build includes/excludes Xpath condition
		String nameTag = "name";
		createTagCondition(taglib, nameTag);
		File tld = new File(outputDirectory, "META-INF/"
				+ taglib.getTaglib() + ".tld");
		mergeXML(models, includeTld, TLD_TEMPLATE, "/taglib/tag"
				+ createTagCondition(taglib, "name") + " | /taglib/listener",
				null, new VelocityContext(taglibContext), tld);
		File faceletsTaglib = new File(outputDirectory, "META-INF/"
				+ taglib.getTaglib() + ".taglib.xml");
		mergeXML(models, includeTaglib, TAGLIB_TEMPLATE, "/facelet-taglib/tag"
				+ createTagCondition(taglib, "tag-name")
				+ " | /facelet-taglib/function", null, new VelocityContext(
				taglibContext), faceletsTaglib);
	}

	/**
	 * @param taglib
	 * @param nameTag
	 */
	private String createTagCondition(Taglib taglib, String nameTag) {
		StringBuffer condition = new StringBuffer();
		if (taglib.getIncludeTags() != null || taglib.getExcludeTags() != null) {
			condition.append('[');
			if (taglib.getIncludeTags() != null) {
				condition.append('(');
				String[] includes = taglib.getIncludeTags().split(",");
				for (int i = 0; i < includes.length; i++) {
					String includeTag = includes[i];
					if (i != 0) {
						condition.append(" or ");
					}
					condition.append("normalize-space(").append(nameTag)
							.append(")='").append(includeTag).append("'");
				}
				condition.append(')');
			}
			if (taglib.getIncludeTags() != null
					&& taglib.getExcludeTags() != null) {
				condition.append(" and ");
			}
			if (taglib.getExcludeTags() != null) {
				condition.append('(');
				String[] excludes = taglib.getExcludeTags().split(",");
				for (int i = 0; i < excludes.length; i++) {
					String includeTag = excludes[i];
					if (i != 0) {
						condition.append(" and ");
					}
					condition.append("normalize-space(").append(nameTag)
							.append(")!='").append(includeTag).append("'");
				}
				condition.append(')');
			}
			condition.append(']');
		}
		return condition.toString();
	}

	/**
	 * @return
	 * @throws MojoExecutionException
	 */
	private List extractModules() throws MojoExecutionException {
		List modules = parentProject.getModules();
		List models = new ArrayList(modules.size());
		Map<String, Dependency> projectsDependencies = new HashMap<String, Dependency>();
		for (Iterator iter = modules.iterator(); iter.hasNext();) {
			String moduleName = (String) iter.next();
			getLog().info("Parent project have module " + moduleName);
			Model model;
			File f = new File(parentProject.getBasedir(), moduleName
					+ "/pom.xml");
			if (f.exists()) {
				try {
					model = mavenProjectBuilder.build(f, localRepository, null)
							.getModel();
				} catch (ProjectBuildingException e) {
					throw new MojoExecutionException(
							"Unable to read local module-POM", e);
				}
			} else {
				getLog().warn("No filesystem module-POM available");

				model = new Model();
				model.setName(moduleName);
				model.setUrl(moduleName);
			}
			if (project.getGroupId().equals(model.getGroupId())
					&& "jar".equals(model.getPackaging())
					&& (!project.getArtifactId().equals(model.getArtifactId()))) {
				// TODO - check include/exclude
				getLog().debug(
						"Project " + model.getName()
								+ " included to library set");
				List dependencies = model.getDependencies();
				for (Iterator iterator = dependencies.iterator(); iterator
						.hasNext();) {
					Dependency dependency = (Dependency) iterator.next();
					getLog().debug(
							dependency.getClass().getName() + " : "
									+ dependency + " with key: "
									+ dependency.getManagementKey());
					if (!"test".equals(dependency.getScope())) {
						projectsDependencies.put(dependency.getManagementKey(),
								dependency);

					}
				}
				models.add(model);
			}
		}
		// Remove modules projects from dependencise
		Set<String> unwanted = new HashSet<String>(projectsDependencies.size());
		for (Iterator iter = models.iterator(); iter.hasNext();) {
			Model model = (Model) iter.next();
			for (Iterator iterator = projectsDependencies.values().iterator(); iterator
					.hasNext();) {
				Dependency dependency = (Dependency) iterator.next();
				if (model.getGroupId().equals(dependency.getGroupId())
						&& model.getArtifactId().equals(
								dependency.getArtifactId())) {
					getLog().debug(
							"Remove dependency of library module "
									+ dependency.getManagementKey());
					unwanted.add(dependency.getManagementKey());
				}
			}
			// Got module and unpack it to target directory.
			Artifact artifact = factory.createBuildArtifact(model.getGroupId(),
					model.getArtifactId(), model.getVersion(), model
							.getPackaging());
			File moduleDir = new File(buildDirectory, model.getArtifactId());
			unpackArtifact(artifact, moduleDir, true);
			artifact = factory
					.createArtifactWithClassifier(model.getGroupId(), model
							.getArtifactId(), model.getVersion(), "jar",
							"sources");
			unpackArtifact(artifact, modulesSrc, false);
		}
		// Add projects dependencies to this project
		projectsDependencies.keySet().removeAll(unwanted);
		setupGeneratedProject(projectsDependencies);
		return models;
	}

	/**
	 * @param projectsDependencies
	 * @throws MojoExecutionException
	 */
	private void setupGeneratedProject(
			Map<String, Dependency> projectsDependencies)
			throws MojoExecutionException {
		Model generatedProject;
		try {
			MavenXpp3Reader reader = new MavenXpp3Reader();
			generatedProject = reader.read(new FileReader(project.getFile()));
		} catch (Exception e1) {
			throw new MojoExecutionException("Unable to read local POM", e1);
		}
		generatedProject.getDependencies()
				.addAll(projectsDependencies.values());
		writePom(generatedProject);
		project.setDependencies(new ArrayList(projectsDependencies.values()));
//		project.setFile(generatedPom);
	}

	/**
	 * Check parent project, build if nesessary.
	 * 
	 * @throws MojoFailureException
	 */
	protected void setupParentProject() throws MojoFailureException {
		// Parent project not set for a custom lifecycles. Try to load artifact.
		if (null == parentProject || null == parentProject.getFile()) {
			Parent parentModel = project.getModel().getParent();
			if (null != parentModel) {
				String relativePath = parentModel.getRelativePath();
				File parentPom = new File(project.getFile().getAbsoluteFile()
						.getParentFile(), relativePath);
				if (parentPom.isDirectory()) {
					parentPom = new File(parentPom, "pom.xml");
				}
				if (parentPom.exists()) {
					try {
						parentProject = mavenProjectBuilder.build(parentPom,
								localRepository, null);
						if (null == parentProject) {
							throw new MojoFailureException(
									"Components library project must have parent pom with components modules");
						}
					} catch (ProjectBuildingException e) {
						throw new MojoFailureException(
								"Error get parent project for a components library");
					}
				} else {
					throw new MojoFailureException(
							"Parent project pom file not found for a components library");
				}
			} else {
				throw new MojoFailureException(
						"Components library project must have parent pom with components modules");
			}

		}
	}

	/**
	 * @param models
	 * @throws MojoExecutionException
	 */
	private void mergeFacesConfig(List models) throws MojoExecutionException {
		StringBuffer config = new StringBuffer();
		for (int i = 0; i < library.getRenderkits().length; i++) {
			Renderkit kit = library.getRenderkits()[i];
			kit.setContent(new StringBuffer());
		}
		for (Iterator iter = models.iterator(); iter.hasNext();) {
			Model model = (Model) iter.next();
			File moduleFacesConfig = new File(buildDirectory, model
					.getArtifactId()
					+ "/META-INF/faces-config.xml");
			if (moduleFacesConfig.exists()) {
				getLog().info(
						"Process faces-config.xml for module "
								+ model.getArtifactId());
				XMLBody configBody = new XMLBody();
				try {
					configBody.loadXML(new FileInputStream(moduleFacesConfig));
					config
							.append(configBody
									.getContent("/faces-config/*[name()!=\'render-kit\']"));
					for (int i = 0; i < library.getRenderkits().length; i++) {
						Renderkit kit = library.getRenderkits()[i];
						kit
								.getContent()
								.append(
										configBody
												.getContent("/faces-config/render-kit[child::render-kit-id='"
														+ kit.getName()
														+ "']/renderer"));
					}
				} catch (FileNotFoundException e) {
					throw new MojoExecutionException(
							"Could't read faces-config file", e);
				} catch (ParsingException e) {
					throw new MojoExecutionException(
							"Error parsing faces-config file", e);
				}
			}
		}
		VelocityContext context = new VelocityContext();
		context.put("content", config.toString());
		context.put("library", library);
		context.put("renderkits", Arrays.asList(library.getRenderkits()));
		try {
			writeParsedTemplate(templates + FACES_CONFIG_TEMPLATE, context,
					new File(outputDirectory, "META-INF/faces-config.xml"));
		} catch (Exception e) {
			throw new MojoExecutionException(
					"Error to process faces-config template", e);
		}
	}

	/**
	 * Merge XML files from extracted models to one in build directory.
	 * 
	 * @param models
	 *            models collected in library.
	 * @param filename
	 *            relative path to config file in models/output.
	 * @param templateName -
	 *            name of velocity template for result file.
	 * @param commonXpath -
	 *            XPath expression fof common part of result file.
	 * @param keyXPath -
	 *            XPath expression for key part of common parts
	 * @param keySet -
	 *            {@link Set} to check for duplicate keys. Must not be null
	 * @param context -
	 *            Velocity context for template processing.
	 * @throws MojoExecutionException
	 */
	private void mergeXML(List models, String filename, String templateName,
			String commonXpath, String keyXPath, VelocityContext context,
			File target) throws MojoExecutionException {
		Set<String> keySet = new HashSet<String>();
		StringBuffer content = new StringBuffer();
		List<XMLBody> xmls = new ArrayList<XMLBody>(models.size());
		String[] split = filename.split(",");
		for (Iterator iter = models.iterator(); iter.hasNext();) {
			Model model = (Model) iter.next();
			File moduleDir = new File(buildDirectory, model.getArtifactId());
			DirectoryScanner ds = new DirectoryScanner();
			ds.setFollowSymlinks(true);
			ds.setBasedir(moduleDir);
			ds.setIncludes(split);
			ds.addDefaultExcludes();
			ds.scan();
			String[] files = ds.getIncludedFiles();
			for (int i = 0; i < files.length; i++) {
				File moduleFacesConfig = new File(moduleDir, files[i]);
				getLog().info(
						"Process " + files[i] + " for module "
								+ model.getArtifactId());
				XMLBody configBody = new XMLBody();
				try {
					configBody.loadXML(new FileInputStream(moduleFacesConfig));
					xmls.add(configBody);
					if (commonXpath != null) {
						if (keyXPath == null) {
							content.append(configBody.getContent(commonXpath));
						} else {
							content.append(configBody.getContentUnique(
									commonXpath, keyXPath, keySet));
						}
					} else {
						content.append(configBody.getContent());
					}
				} catch (FileNotFoundException e) {
					throw new MojoExecutionException("Could't read  file "
							+ moduleFacesConfig.getPath(), e);
				} catch (ParsingException e) {
					throw new MojoExecutionException(
							"Error parsing config file "
									+ moduleFacesConfig.getPath(), e);
				}
			}
		}
		if (xmls.size() > 0) {
			context.put("content", content.toString());
			context.put("library", library);
			context.put("models", models);
			context.put("xmls", xmls);
			try {
				writeParsedTemplate(templates + templateName, context, target);
			} catch (Exception e) {
				throw new MojoExecutionException("Error to process template "
						+ templateName + " for files " + filename, e);
			}

		}
	}

	private void unpackArtifact(Artifact artifact, File moduleDir,
			boolean isResource) throws MojoExecutionException {
		try {
			resolver.resolve(artifact, Collections.EMPTY_LIST, localRepository);
			unpack(artifact.getFile(), moduleDir);
			if (isResource) {
				Resource resource = new Resource();
				resource.setDirectory(moduleDir.getPath());
				resource.addExclude("META-INF/faces-config.xml");
				resource.addExclude("META-INF/resources-config.xml");
				resource.addExclude("META-INF/*.taglib.xml");
				resource.addExclude("META-INF/*.tld");
				project.addResource(resource);

			}
		} catch (ArtifactResolutionException e) {
			getLog().error("Error with resolve artifact " + artifact, e);
		} catch (ArtifactNotFoundException e) {
			getLog().error("Not found artifact " + artifact, e);
		}
	}

	private List<MavenProject> populateReactorProjects() {
		List<MavenProject> projects = new ArrayList<MavenProject>();
		if (reactorProjects != null && reactorProjects.size() > 1) {
			Iterator reactorItr = reactorProjects.iterator();

			while (reactorItr.hasNext()) {
				MavenProject reactorProject = (MavenProject) reactorItr.next();

				if (reactorProject != null
						&& reactorProject.getParent() != null
						&& project.getArtifactId().equals(
								reactorProject.getParent().getArtifactId())) {
					String name = reactorProject.getGroupId() + ":"
							+ reactorProject.getArtifactId();
					getLog().info("Have reactor project with name " + name);
					projects.add(reactorProject);
				}
			}
		}
		return projects;
	}

	/**
	 * Unpacks the archive file.
	 * 
	 * @param file
	 *            File to be unpacked.
	 * @param location
	 *            Location where to put the unpacked files.
	 */
	private void unpack(File file, File location) throws MojoExecutionException {

		getLog().debug(
				"Unpack file " + file.getAbsolutePath() + " to: "
						+ location.getAbsolutePath());
		try {
			location.mkdirs();

			UnArchiver unArchiver;

			unArchiver = archiverManager.getUnArchiver(file);

			unArchiver.setSourceFile(file);

			unArchiver.setDestDirectory(location);

			unArchiver.setOverwrite(true);

			unArchiver.extract();

		} catch (Exception e) {
			throw new MojoExecutionException("Error unpacking file: " + file
					+ " to: " + location + "\r\n" + e.toString(), e);
		}
	}

	private void writePom(Model pom) throws MojoExecutionException {
		MavenXpp3Writer pomWriter = new MavenXpp3Writer();
		try {
			FileWriter out = new FileWriter(generatedPom);
			pomWriter.write(out, pom);
		} catch (IOException e) {
			throw new MojoExecutionException("Error for write generated pom", e);
		}

	}

	/**
	 * @return the archiverManager
	 */
	public ArchiverManager getArchiverManager() {
		return this.archiverManager;
	}

	/**
	 * @param archiverManager
	 *            the archiverManager to set
	 */
	public void setArchiverManager(ArchiverManager archiverManager) {
		this.archiverManager = archiverManager;
	}

	/**
	 * @return the buildDirectory
	 */
	public File getBuildDirectory() {
		return this.buildDirectory;
	}

	/**
	 * @param buildDirectory
	 *            the buildDirectory to set
	 */
	public void setBuildDirectory(File buildDirectory) {
		this.buildDirectory = buildDirectory;
	}

	/**
	 * @return the factory
	 */
	public org.apache.maven.artifact.factory.ArtifactFactory getFactory() {
		return this.factory;
	}

	/**
	 * @param factory
	 *            the factory to set
	 */
	public void setFactory(
			org.apache.maven.artifact.factory.ArtifactFactory factory) {
		this.factory = factory;
	}

	/**
	 * @return the localRepository
	 */
	public ArtifactRepository getLocalRepository() {
		return this.localRepository;
	}

	/**
	 * @param localRepository
	 *            the localRepository to set
	 */
	public void setLocalRepository(ArtifactRepository localRepository) {
		this.localRepository = localRepository;
	}

	/**
	 * @return the mavenProjectBuilder
	 */
	public MavenProjectBuilder getMavenProjectBuilder() {
		return this.mavenProjectBuilder;
	}

	/**
	 * @param mavenProjectBuilder
	 *            the mavenProjectBuilder to set
	 */
	public void setMavenProjectBuilder(MavenProjectBuilder mavenProjectBuilder) {
		this.mavenProjectBuilder = mavenProjectBuilder;
	}

	/**
	 * @return the parentProject
	 */
	public MavenProject getParentProject() {
		return this.parentProject;
	}

	/**
	 * @param parentProject
	 *            the parentProject to set
	 */
	public void setParentProject(MavenProject parentProject) {
		this.parentProject = parentProject;
	}

	/**
	 * @return the reactorProjects
	 */
	public List getReactorProjects() {
		return this.reactorProjects;
	}

	/**
	 * @param reactorProjects
	 *            the reactorProjects to set
	 */
	public void setReactorProjects(List reactorProjects) {
		this.reactorProjects = reactorProjects;
	}

	/**
	 * @return the resolver
	 */
	public org.apache.maven.artifact.resolver.ArtifactResolver getResolver() {
		return this.resolver;
	}

	/**
	 * @param resolver
	 *            the resolver to set
	 */
	public void setResolver(
			org.apache.maven.artifact.resolver.ArtifactResolver resolver) {
		this.resolver = resolver;
	}

}
