dom/src/main/java/org/apache/james/mime4j/field/UnstructuredFieldImpl.java

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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.mime4j.field;

import org.apache.james.mime4j.codec.DecodeMonitor;
import org.apache.james.mime4j.codec.DecoderUtil;
import org.apache.james.mime4j.dom.FieldParser;
import org.apache.james.mime4j.dom.field.UnstructuredField;
import org.apache.james.mime4j.stream.Field;

/**
 * Simple unstructured field such as <code>Subject</code>.
 */
public class UnstructuredFieldImpl extends AbstractField implements UnstructuredField {
    private boolean parsed = false;

    private String value;

    UnstructuredFieldImpl(Field rawField, DecodeMonitor monitor) {
        super(rawField, monitor);
    }

    /**
     * @see org.apache.james.mime4j.dom.field.UnstructuredField#getValue()
     */
    public String getValue() {
        if (!parsed)
            parse();

        return value;
    }

    private void parse() {
        String body = getBody();

        value = DecoderUtil.decodeEncodedWords(body, monitor);

        parsed = true;
    }

    public static final FieldParser<UnstructuredField> PARSER = new FieldParser<UnstructuredField>() {
        
        public UnstructuredField parse(final Field rawField, final DecodeMonitor monitor) {
            return new UnstructuredFieldImpl(rawField, monitor);
        }
        
    };

}