# CopyContracts.java

    /*
     *  Copyright 2013-2016 the original author or authors.
     *
     *  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.springframework.cloud.contract.maven.verifier;

    import java.io.File;
    import java.lang.invoke.MethodHandles;
    import java.util.Collections;

    import org.apache.maven.execution.MavenSession;
    import org.apache.maven.model.Resource;
    import org.apache.maven.plugin.MojoExecutionException;
    import org.apache.maven.project.MavenProject;
    import org.apache.maven.shared.filtering.MavenFilteringException;
    import org.apache.maven.shared.filtering.MavenResourcesExecution;
    import org.apache.maven.shared.filtering.MavenResourcesFiltering;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;

    class CopyContracts {
    	private static final Logger log = LoggerFactory
    			.getLogger(MethodHandles.lookup().lookupClass());
    	private final MavenProject project;
    	private final MavenSession mavenSession;
    	private final MavenResourcesFiltering mavenResourcesFiltering;

    	public CopyContracts(MavenProject project, MavenSession mavenSession,
    			MavenResourcesFiltering mavenResourcesFiltering) {
    		this.project = project;
    		this.mavenSession = mavenSession;
    		this.mavenResourcesFiltering = mavenResourcesFiltering;
    	}

    	public void copy(File contractsDirectory, File outputDirectory)
    			throws MojoExecutionException {
    		log.info("Copying Spring Cloud Contract Verifier contracts");
    		Resource resource = new Resource();
    		resource.setDirectory(contractsDirectory.getAbsolutePath());
    		MavenResourcesExecution execution = new MavenResourcesExecution();
    		execution.setResources(Collections.singletonList(resource));
    		execution.setOutputDirectory(new File(outputDirectory, "contracts"));
    		execution.setMavenProject(project);
    		execution.setEncoding("UTF-8");
    		execution.setMavenSession(mavenSession);
    		execution.setInjectProjectBuildFilters(false);
    		execution.setOverwrite(true);
    		execution.setIncludeEmptyDirs(false);
    		execution.setFilterFilenames(false);
    		try {
    			mavenResourcesFiltering.filterResources(execution);
    		}
    		catch (MavenFilteringException e) {
    			throw new MojoExecutionException(e.getMessage(), e);
    		}

    	}
    }