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* 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 *
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package org.apache.james.mime4j.field;
import java.util.BitSet;
import org.apache.james.mime4j.codec.DecodeMonitor;
import org.apache.james.mime4j.dom.FieldParser;
import org.apache.james.mime4j.dom.field.MimeVersionField;
import org.apache.james.mime4j.stream.Field;
import org.apache.james.mime4j.stream.ParserCursor;
import org.apache.james.mime4j.stream.RawField;
import org.apache.james.mime4j.stream.RawFieldParser;
import org.apache.james.mime4j.util.ByteSequence;
import org.apache.james.mime4j.util.ContentUtil;
/**
* Represents a <code>MIME-Version</code> field.
*/
public class MimeVersionFieldLenientImpl extends AbstractField implements MimeVersionField {
private final static int FULL_STOP = '.';
private final static BitSet DELIM = RawFieldParser.INIT_BITSET(FULL_STOP);
public static final int DEFAULT_MINOR_VERSION = 0;
public static final int DEFAULT_MAJOR_VERSION = 1;
private boolean parsed = false;
private int major = DEFAULT_MAJOR_VERSION;
private int minor = DEFAULT_MINOR_VERSION;
MimeVersionFieldLenientImpl(Field rawField, DecodeMonitor monitor) {
super(rawField, monitor);
}
private void parse() {
parsed = true;
major = DEFAULT_MAJOR_VERSION;
minor = DEFAULT_MINOR_VERSION;
RawField f = getRawField();
ByteSequence buf = f.getRaw();
int pos = f.getDelimiterIdx() + 1;
if (buf == null) {
String body = f.getBody();
if (body == null) {
return;
}
buf = ContentUtil.encode(body);
pos = 0;
}
RawFieldParser parser = RawFieldParser.DEFAULT;
ParserCursor cursor = new ParserCursor(pos, buf.length());
String token1 = parser.parseValue(buf, cursor, DELIM);
try {
major = Integer.parseInt(token1);
if (major < 0) {
major = 0;
}
} catch (NumberFormatException ex) {
}
if (!cursor.atEnd() && buf.byteAt(cursor.getPos()) == FULL_STOP) {
cursor.updatePos(cursor.getPos() + 1);
}
String token2 = parser.parseValue(buf, cursor, null);
try {
minor = Integer.parseInt(token2);
if (minor < 0) {
minor = 0;
}
} catch (NumberFormatException ex) {
}
}
public int getMinorVersion() {
if (!parsed) {
parse();
}
return minor;
}
public int getMajorVersion() {
if (!parsed) {
parse();
}
return major;
}
public static final FieldParser<MimeVersionField> PARSER = new FieldParser<MimeVersionField>() {
public MimeVersionField parse(final Field rawField, final DecodeMonitor monitor) {
return new MimeVersionFieldLenientImpl(rawField, monitor);
}
};
}