de.jcup.egradle.core.VersionedFolderToUserHomeCopySupport.java Source code

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Here is the source code for de.jcup.egradle.core.VersionedFolderToUserHomeCopySupport.java

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/*
 * Copyright 2016 Albert Tregnaghi
 *
 * 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 de.jcup.egradle.core;

import static org.apache.commons.lang3.Validate.*;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

import de.jcup.egradle.core.util.DirectoryCopySupport;
import de.jcup.egradle.core.util.LogAdapter;

/**
 * Support class which is able to copy files from given root folder to a path
 * inside EGradle user home. It handles also different versions and does check
 * if the target folder already exists - so caller can decide to override or to
 * ignore
 * 
 * @author Albert Tregnaghi
 *
 */
public class VersionedFolderToUserHomeCopySupport implements RootFolderCopySupport {

    private File targetFolder;
    private DirectoryCopySupport copySupport;

    public VersionedFolderToUserHomeCopySupport(String path, VersionData versionData, LogAdapter logAdapter) {
        notNull(path, "'pathFromEGradleUserHome' may not be null");
        notNull(versionData, "'version' may not be null");

        copySupport = new DirectoryCopySupport();

        String userHome = System.getProperty("user.home");
        File egradleRoot = new File(userHome, ".egradle");
        File mainPath = new File(egradleRoot, path);

        targetFolder = new File(mainPath, versionData.getAsText());

    }

    /*
     * (non-Javadoc)
     * 
     * @see de.jcup.egradle.core.RootFolderCopySupport#copyFrom(de.jcup.egradle.
     * template.RootFolderProvider)
     */
    @Override
    public boolean copyFrom(RootFolderProvider rootFolderProvider) throws IOException {
        File internalFolder = rootFolderProvider.getRootFolder();
        if (internalFolder == null) {
            /* has to be already logged by root folder provider */
            return false;
        }
        if (!internalFolder.exists()) {
            throw new FileNotFoundException(
                    "Did not find internal folder to copy from:" + internalFolder.toString());
        }
        copySupport.copyDirectories(internalFolder, targetFolder, true);
        return true;
    }

    /*
     * (non-Javadoc)
     * 
     * @see de.jcup.egradle.core.RootFolderCopySupport#isTargetFolderExisting()
     */
    @Override
    public boolean isTargetFolderExisting() {
        return targetFolder.exists();
    }

    /*
     * (non-Javadoc)
     * 
     * @see de.jcup.egradle.core.RootFolderCopySupport#getTargetFolder()
     */
    @Override
    public File getTargetFolder() {
        return targetFolder;
    }

}