import com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer; //导入依赖的package包/类
public void parse(InputStream xml, OutputStream finf, String workingDirectory) throws Exception {
    StAXDocumentSerializer documentSerializer = new StAXDocumentSerializer();
    documentSerializer.setOutputStream(finf);

    SAX2StAXWriter saxTostax = new SAX2StAXWriter(documentSerializer);

    SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
    saxParserFactory.setNamespaceAware(true);
    SAXParser saxParser = saxParserFactory.newSAXParser();

    XMLReader reader = saxParser.getXMLReader();
    reader.setProperty("http://xml.org/sax/properties/lexical-handler", saxTostax);
    reader.setContentHandler(saxTostax);

    if (workingDirectory != null) {
        reader.setEntityResolver(createRelativePathResolver(workingDirectory));
    }
    reader.parse(new InputSource(xml));

    xml.close();
    finf.close();
}
 

import com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer; //导入依赖的package包/类
/**
 * Create a new (@link StAXDocumentSerializer} instance.
 *
 * @param in the OutputStream to serialize to.
 * @param retainState if true the serializer should retain the state of
 *        vocabulary tables for multiple serializations.
 * @return a new {@link StAXDocumentSerializer} instance.
 */
/* package */ static StAXDocumentSerializer createNewStreamWriter(OutputStream out,
        boolean retainState, int indexedStringSizeLimit, int stringsMemoryLimit) {
    StAXDocumentSerializer serializer = new StAXDocumentSerializer(out);
    if (retainState) {
        /**
         * Create a serializer vocabulary external to the serializer.
         * This will ensure that the vocabulary will never be cleared
         * for each serialization and will be retained (and will grow)
         * for each serialization
         */
        SerializerVocabulary vocabulary = new SerializerVocabulary();
        serializer.setVocabulary(vocabulary);
        serializer.setMinAttributeValueSize(0);
        serializer.setMaxAttributeValueSize(indexedStringSizeLimit);
        serializer.setMinCharacterContentChunkSize(0);
        serializer.setMaxCharacterContentChunkSize(indexedStringSizeLimit);
        serializer.setAttributeValueMapMemoryLimit(stringsMemoryLimit);
        serializer.setCharacterContentChunkMapMemoryLimit(stringsMemoryLimit);
    }
    return serializer;
}
 

import com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer; //导入依赖的package包/类
public FastInfosetStreamWriterOutput(StAXDocumentSerializer out,
        JAXBContextImpl context) {
    super(out);

    this.fiout = out;
    this.localNames = context.getUTF8NameTable();

    final VocabularyApplicationData vocabAppData = fiout.getVocabularyApplicationData();
    AppData appData = null;
    if (vocabAppData == null || !(vocabAppData instanceof AppData)) {
        appData = new AppData();
        fiout.setVocabularyApplicationData(appData);
    } else {
        appData = (AppData)vocabAppData;
    }

    final TablesPerJAXBContext tablesPerContext = appData.contexts.get(context);
    if (tablesPerContext != null) {
        tables = tablesPerContext;
        /**
         * Obtain the current local name index. Thus will be used to
         * calculate the maximum index value when serializing for this context
         */
        tables.clearOrResetTables(out.getLocalNameIndex());
    } else {
        tables = new TablesPerJAXBContext(context, out.getLocalNameIndex());
        appData.contexts.put(context, tables);
    }
}
 

import com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer; //导入依赖的package包/类
public FastInfosetStreamWriterOutput(StAXDocumentSerializer out,
        JAXBContextImpl context) {
    super(out, NoEscapeHandler.theInstance);

    this.fiout = out;
    this.localNames = context.getUTF8NameTable();

    final VocabularyApplicationData vocabAppData = fiout.getVocabularyApplicationData();
    AppData appData = null;
    if (vocabAppData == null || !(vocabAppData instanceof AppData)) {
        appData = new AppData();
        fiout.setVocabularyApplicationData(appData);
    } else {
        appData = (AppData)vocabAppData;
    }

    final TablesPerJAXBContext tablesPerContext = appData.contexts.get(context);
    if (tablesPerContext != null) {
        tables = tablesPerContext;
        /**
         * Obtain the current local name index. Thus will be used to
         * calculate the maximum index value when serializing for this context
         */
        tables.clearOrResetTables(out.getLocalNameIndex());
    } else {
        tables = new TablesPerJAXBContext(context, out.getLocalNameIndex());
        appData.contexts.put(context, tables);
    }
}
 

import com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer; //导入依赖的package包/类
/**
 * Create a new (@link StAXDocumentSerializer} instance.
 *
 * @param in the OutputStream to serialize to.
 * @param retainState if true the serializer should retain the state of
 *        vocabulary tables for multiple serializations.
 * @return a new {@link StAXDocumentSerializer} instance.
 */
/* package */ static StAXDocumentSerializer createNewStreamWriter(OutputStream out, boolean retainState) {
    return createNewStreamWriter(out, retainState, DEFAULT_INDEXED_STRING_SIZE_LIMIT, DEFAULT_INDEXED_STRING_MEMORY_LIMIT);
}