org.apache.oodt.cas.crawl.action.MoveFile.java Source code

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Here is the source code for org.apache.oodt.cas.crawl.action.MoveFile.java

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/*
 * 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.oodt.cas.crawl.action;

//JDK imports
import java.io.File;
import java.util.logging.Level;

//OODT imports
import org.apache.commons.lang.Validate;
import org.apache.oodt.cas.crawl.structs.exceptions.CrawlerActionException;
import org.apache.oodt.cas.metadata.Metadata;

//Spring imports
import org.springframework.beans.factory.annotation.Required;

//File.Utils import to handle NFS mounted directories
import org.apache.commons.io.FileUtils;

/**
 * Moves a {@link Product} file as a reponse to a Crawler lifecycle phase
 * 
 * @author bfoster (Brian Foster)
 * @author mattmann (Chris Mattmann)
 */
public class MoveFile extends CrawlerAction {

    private String file;
    private String toDir;
    private String fileExtension;
    private boolean createToDir;

    public MoveFile() {
        super();
        this.createToDir = false;
    }

    public boolean performAction(File product, Metadata productMetadata) throws CrawlerActionException {
        String mvFile = file;
        try {
            if (mvFile == null) {
                mvFile = product.getAbsolutePath();
                if (this.fileExtension != null) {
                    mvFile += "." + this.fileExtension;
                }
            }
            File srcFile = new File(mvFile);
            File toFile = new File(toDir + "/" + srcFile.getName());
            if (createToDir) {
                toFile.getParentFile().mkdirs();
            }
            LOG.log(Level.INFO, "Moving file " + srcFile.getAbsolutePath() + " to " + toFile.getAbsolutePath());
            if (!srcFile.renameTo(toFile)) {//If the file failed to copy
                LOG.log(Level.INFO, "Moving failed, possibly because ingest dir is nfs mounted. Retrying to move "
                        + srcFile.getAbsolutePath() + " to " + toFile.getAbsolutePath());
                FileUtils.copyFileToDirectory(srcFile, toFile.getParentFile());
                FileUtils.forceDelete(srcFile); //Need to delete the old file
                return true; //File copied on second attempt
            } else {
                return true; //File copied
            }
        } catch (Exception e) {
            throw new CrawlerActionException(
                    "Failed to move file from " + mvFile + " to " + this.toDir + " : " + e.getMessage(), e);
        }
    }

    @Override
    public void validate() throws CrawlerActionException {
        super.validate();
        try {
            Validate.isTrue(file == null || fileExtension == null, "Must specify either file or fileExtension");
        } catch (Exception e) {
            throw new CrawlerActionException(e);
        }
    }

    public void setCreateToDir(boolean createToDir) {
        this.createToDir = createToDir;
    }

    public void setFile(String file) {
        this.file = file;
    }

    @Required
    public void setToDir(String toDir) {
        this.toDir = toDir;
    }

    public String getToDir() {
        return toDir;
    }

    public void setFileExtension(String fileExtension) {
        this.fileExtension = fileExtension;
    }
}