teetime.stage.MD5Stage.java Source code

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Here is the source code for teetime.stage.MD5Stage.java

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/**
 * Copyright  2015 Christian Wulf, Nelson Tavares de Sousa (http://teetime-framework.github.io)
 *
 * 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 teetime.stage;

import java.nio.charset.Charset;

import com.google.common.hash.Hasher;
import com.google.common.hash.Hashing;

import teetime.stage.basic.AbstractFilter;
import teetime.stage.taskfarm.ITaskFarmDuplicable;

public class MD5Stage extends AbstractFilter<String> implements ITaskFarmDuplicable<String, String> {

    private final Charset charset;

    /**
     * encoding = UTF-8
     */
    public MD5Stage() {
        this(Charset.forName("UTF-8"));
    }

    /**
     * @param encoding
     *            of the input strings for hashing algorithm
     * @deprecated As of 3.0. Use {{@link #MD5Stage(Charset)} instead.
     */
    @Deprecated
    public MD5Stage(final String encoding) {
        this.charset = Charset.forName(encoding);
    }

    /**
     * @param charset
     *            of the input strings for hashing algorithm
     * @see java.nio.charset.StandardCharsets Available charsets
     */
    public MD5Stage(final Charset charset) {
        this.charset = charset;
    }

    @Override
    protected void execute(final String element) {
        Hasher hasher = Hashing.md5().newHasher();
        hasher.putString(element, charset);
        outputPort.send(hasher.hash().toString());
    }

    public String getEncoding() {
        return charset.displayName();
    }

    @Override
    public ITaskFarmDuplicable<String, String> duplicate() {
        return new MD5Stage(charset);
    }
}