org.smartdeveloperhub.vocabulary.language.util.LocalizedProperties.java Source code

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Here is the source code for org.smartdeveloperhub.vocabulary.language.util.LocalizedProperties.java

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/**
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   This file is part of the Smart Developer Hub Project:
 *     http://www.smartdeveloperhub.org/
 *
 *   Center for Open Middleware
 *     http://www.centeropenmiddleware.com/
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Copyright (C) 2015-2016 Center for Open Middleware.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   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.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Artifact    : org.smartdeveloperhub.vocabulary:sdh-vocabulary:0.3.0
 *   Bundle      : sdh-vocabulary-0.3.0.jar
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 */
package org.smartdeveloperhub.vocabulary.language.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;

public final class LocalizedProperties {

    private final Map<String, String> properties;

    public LocalizedProperties() {
        this.properties = Maps.newTreeMap();
    }

    public LocalizedProperties(final LocalizedProperties that) {
        this();
        this.properties.putAll(that.properties);
    }

    public void putAll(final Map<String, String> values) {
        this.properties.putAll(values);
    }

    public Set<String> propertyNames() {
        return ImmutableSet.copyOf(this.properties.keySet());
    }

    public String getProperty(final String property) {
        return this.properties.get(property);
    }

    public String getProperty(final String property, final String defaultValue) {
        String result = this.properties.get(property);
        if (result == null) {
            result = defaultValue;
        }
        return result;
    }

    public String setProperty(final String property, final String value) {
        return this.properties.put(property, value);
    }

    public void load(final InputStream stream, final Charset charset) throws IOException {
        final BufferedReader in = new BufferedReader(new InputStreamReader(stream, charset));
        String str;
        int line = 0;
        while ((str = in.readLine()) != null) {
            line++;
            if (str.startsWith("#")) {
                continue;
            }
            final String[] split = str.split("=");
            if (split.length == 1) {
                System.err.println("Ignored line " + line + ": '" + str + "'");
                continue;
            }
            this.properties.put(split[0], split[1]);
        }
    }

    public void store(final OutputStream stream, final Charset charset) throws IOException {
        final OutputStreamWriter writer = new OutputStreamWriter(stream, charset);
        for (final Entry<String, String> entry : this.properties.entrySet()) {
            final String line = entry.getKey() + "=" + entry.getValue() + "\r";
            writer.write(line);
        }
        writer.flush();
    }

}