opennlp.tools.langdetect.LanguageDetectorModel.java Source code

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Here is the source code for opennlp.tools.langdetect.LanguageDetectorModel.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 opennlp.tools.langdetect;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Map;

import opennlp.tools.ml.model.AbstractModel;
import opennlp.tools.ml.model.MaxentModel;
import opennlp.tools.util.BaseToolFactory;
import opennlp.tools.util.InvalidFormatException;
import opennlp.tools.util.model.BaseModel;

/**
 * A model for language detection
 */
public class LanguageDetectorModel extends BaseModel {

    private static final String COMPONENT_NAME = "LanguageDetectorME";
    private static final String LANGDETECT_MODEL_ENTRY_NAME = "langdetect.model";

    public LanguageDetectorModel(MaxentModel langdetectModel, Map<String, String> manifestInfoEntries,
            LanguageDetectorFactory factory) {
        super(COMPONENT_NAME, "und", manifestInfoEntries, factory);

        artifactMap.put(LANGDETECT_MODEL_ENTRY_NAME, langdetectModel);
        checkArtifactMap();
    }

    public LanguageDetectorModel(InputStream in) throws IOException {
        super(COMPONENT_NAME, in);
    }

    public LanguageDetectorModel(File modelFile) throws IOException {
        super(COMPONENT_NAME, modelFile);
    }

    public LanguageDetectorModel(URL modelURL) throws IOException {
        super(COMPONENT_NAME, modelURL);
    }

    @Override
    protected void validateArtifactMap() throws InvalidFormatException {
        super.validateArtifactMap();

        if (!(artifactMap.get(LANGDETECT_MODEL_ENTRY_NAME) instanceof AbstractModel)) {
            throw new InvalidFormatException("Language detector model is incomplete!");
        }
    }

    public LanguageDetectorFactory getFactory() {
        return (LanguageDetectorFactory) this.toolFactory;
    }

    @Override
    protected Class<? extends BaseToolFactory> getDefaultFactory() {
        return LanguageDetectorFactory.class;
    }

    public MaxentModel getMaxentModel() {
        return (MaxentModel) artifactMap.get(LANGDETECT_MODEL_ENTRY_NAME);
    }
}