org.commonjava.aprox.subsys.datafile.DataFile.java Source code

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Here is the source code for org.commonjava.aprox.subsys.datafile.DataFile.java

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/**
 * Copyright (C) 2011 Red Hat, Inc. (jdcasey@commonjava.org)
 *
 * 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.commonjava.aprox.subsys.datafile;

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.List;

import org.apache.commons.io.FileUtils;
import org.commonjava.aprox.audit.ChangeSummary;
import org.commonjava.aprox.subsys.datafile.change.DataFileEventManager;

public final class DataFile {

    private final File file;

    private final DataFileEventManager events;

    DataFile(final File file, final DataFileEventManager events) {
        this.file = file;
        this.events = events;
    }

    public String[] list() {
        return file.list();
    }

    public DataFile getChild(final String named) {
        return new DataFile(new File(file, named), events);
    }

    public String readString() throws IOException {
        final String content = FileUtils.readFileToString(file);

        events.accessed(file);
        return content;
    }

    public void delete(final ChangeSummary summary) throws IOException {
        if (file.exists()) {
            FileUtils.forceDelete(file);
            events.deleted(file, summary);
        }
    }

    public DataFile getParent() {
        final File parent = file.getParentFile();
        return parent == null ? null : new DataFile(parent, events);
    }

    public boolean mkdirs() {
        if (file.isDirectory()) {
            return true;
        }

        return file.mkdirs();
    }

    public boolean exists() {
        return file.exists();
    }

    public void writeString(final String content, final ChangeSummary summary) throws IOException {
        FileUtils.write(file, content);
        events.modified(file, summary);
    }

    public void writeString(final String content, final String encoding, final ChangeSummary summary)
            throws IOException {
        FileUtils.write(file, content, encoding);
        events.modified(file, summary);
    }

    public void writeLines(final List<String> lines, final String encoding, final ChangeSummary summary)
            throws IOException {
        FileUtils.writeLines(file, lines, encoding);
        events.modified(file, summary);
    }

    public void writeLines(final List<String> lines, final ChangeSummary summary) throws IOException {
        FileUtils.writeLines(file, lines);
        events.modified(file, summary);
    }

    public void appendString(final String content, final ChangeSummary summary) throws IOException {
        FileUtils.write(file, content, true);
        events.modified(file, summary);
    }

    public void appendString(final String content, final String encoding, final ChangeSummary summary)
            throws IOException {
        FileUtils.write(file, content, encoding, true);
        events.modified(file, summary);
    }

    public void appendLines(final List<String> lines, final String encoding, final ChangeSummary summary)
            throws IOException {
        FileUtils.writeLines(file, lines, encoding, true);
        events.modified(file, summary);
    }

    public void appendLines(final List<String> lines, final ChangeSummary summary) throws IOException {
        FileUtils.writeLines(file, lines, true);
        events.modified(file, summary);
    }

    @Override
    public String toString() {
        return file.getPath();
    }

    public boolean isDirectory() {
        return file.isDirectory();
    }

    public void renameTo(final DataFile target, final ChangeSummary summary) {
        file.renameTo(target.file);
        events.modified(file, summary);
        events.modified(target.file, summary);
    }

    public List<String> readLines() throws IOException {
        final List<String> lines = FileUtils.readLines(file);

        events.accessed(file);
        return lines;
    }

    public String getPath() {
        return file.getPath();
    }

    public void touch() {
        events.accessed(file);
    }

    public DataFile[] listFiles(final FileFilter fileFilter) {
        final File[] files = file.listFiles(fileFilter);
        if (files == null) {
            return null;
        }

        final DataFile[] ffiles = new DataFile[files.length];
        for (int i = 0; i < files.length; i++) {
            ffiles[i] = new DataFile(files[i], events);
        }

        return ffiles;
    }

    public String getName() {
        return file.getName();
    }

    public File getDetachedFile() {
        return file;
    }

}