org.apache.xerces.xni.parser.XMLInputSource Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of xercesImpl Show documentation

Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.

The newest version!

/*
 * 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 org.apache.xerces.xni.parser;

import java.io.InputStream;
import java.io.Reader;

import org.apache.xerces.xni.XMLResourceIdentifier;

/**
 * This class represents an input source for an XML document. The
 * basic properties of an input source are the following:
 * 
 *  public identifier
 *  system identifier
 *  byte stream or character stream
 *  
 * 
 *
 * @author Andy Clark, IBM
 *
 * @version $Id: XMLInputSource.java 699892 2008-09-28 21:08:27Z mrglavas $
 */
public class XMLInputSource {

    //
    // Data
    //

    /** Public identifier. */
    protected String fPublicId;

    /** System identifier. */
    protected String fSystemId;

    /** Base system identifier. */
    protected String fBaseSystemId;

    /** Byte stream. */
    protected InputStream fByteStream;

    /** Character stream. */
    protected Reader fCharStream;

    /** Encoding. */
    protected String fEncoding;

    //
    // Constructors
    //

    /** 
     * Constructs an input source from just the public and system
     * identifiers, leaving resolution of the entity and opening of
     * the input stream up to the caller.
     *
     * @param publicId     The public identifier, if known.
     * @param systemId     The system identifier. This value should
     *                     always be set, if possible, and can be
     *                     relative or absolute. If the system identifier
     *                     is relative, then the base system identifier
     *                     should be set.
     * @param baseSystemId The base system identifier. This value should
     *                     always be set to the fully expanded URI of the
     *                     base system identifier, if possible.
     */
    public XMLInputSource(String publicId, String systemId,  
                          String baseSystemId) {
        fPublicId = publicId;
        fSystemId = systemId;
        fBaseSystemId = baseSystemId;
    } // (String,String,String)

    /** 
     * Constructs an input source from a XMLResourceIdentifier
     * object, leaving resolution of the entity and opening of
     * the input stream up to the caller.
     *
     * @param resourceIdentifier    the XMLResourceIdentifier containing the information
     */
    public XMLInputSource(XMLResourceIdentifier resourceIdentifier) {

        fPublicId = resourceIdentifier.getPublicId();
        fSystemId = resourceIdentifier.getLiteralSystemId();
        fBaseSystemId = resourceIdentifier.getBaseSystemId();
    } // (XMLResourceIdentifier)

    /**
     * Constructs an input source from a byte stream.
     *
     * @param publicId     The public identifier, if known.
     * @param systemId     The system identifier. This value should
     *                     always be set, if possible, and can be
     *                     relative or absolute. If the system identifier
     *                     is relative, then the base system identifier
     *                     should be set.
     * @param baseSystemId The base system identifier. This value should
     *                     always be set to the fully expanded URI of the
     *                     base system identifier, if possible.
     * @param byteStream   The byte stream.
     * @param encoding     The encoding of the byte stream, if known.
     */
    public XMLInputSource(String publicId, String systemId,  
                          String baseSystemId, InputStream byteStream,
                          String encoding) {
        fPublicId = publicId;
        fSystemId = systemId;
        fBaseSystemId = baseSystemId;
        fByteStream = byteStream;
        fEncoding = encoding;
    } // (String,String,String,InputStream,String)

    /**
     * Constructs an input source from a character stream.
     *
     * @param publicId     The public identifier, if known.
     * @param systemId     The system identifier. This value should
     *                     always be set, if possible, and can be
     *                     relative or absolute. If the system identifier
     *                     is relative, then the base system identifier
     *                     should be set.
     * @param baseSystemId The base system identifier. This value should
     *                     always be set to the fully expanded URI of the
     *                     base system identifier, if possible.
     * @param charStream   The character stream.
     * @param encoding     The original encoding of the byte stream
     *                     used by the reader, if known.
     */
    public XMLInputSource(String publicId, String systemId,  
                          String baseSystemId, Reader charStream,
                          String encoding) {
        fPublicId = publicId;
        fSystemId = systemId;
        fBaseSystemId = baseSystemId;
        fCharStream = charStream;
        fEncoding = encoding;
    } // (String,String,String,Reader,String)

    //
    // Public methods
    //

    /** 
     * Sets the public identifier. 
     *
     * @param publicId The new public identifier.
     */
    public void setPublicId(String publicId) {
        fPublicId = publicId;
    } // setPublicId(String)

    /** Returns the public identifier. */
    public String getPublicId() {
        return fPublicId;
    } // getPublicId():String

    /** 
     * Sets the system identifier. 
     *
     * @param systemId The new system identifier.
     */
    public void setSystemId(String systemId) {
        fSystemId = systemId;
    } // setSystemId(String)

    /** Returns the system identifier. */
    public String getSystemId() {
        return fSystemId;
    } // getSystemId():String

    /** 
     * Sets the base system identifier. 
     *
     * @param baseSystemId The new base system identifier.
     */
    public void setBaseSystemId(String baseSystemId) {
        fBaseSystemId = baseSystemId;
    } // setBaseSystemId(String)

    /** Returns the base system identifier. */
    public String getBaseSystemId() {
        return fBaseSystemId;
    } // getBaseSystemId():String

    /**
     * Sets the byte stream. If the byte stream is not already opened
     * when this object is instantiated, then the code that opens the
     * stream should also set the byte stream on this object. Also, if
     * the encoding is auto-detected, then the encoding should also be
     * set on this object.
     *
     * @param byteStream The new byte stream.
     */
    public void setByteStream(InputStream byteStream) {
        fByteStream = byteStream;
    } // setByteStream(InputSource)

    /** Returns the byte stream. */
    public InputStream getByteStream() {
        return fByteStream;
    } // getByteStream():InputStream

    /**
     * Sets the character stream. If the character stream is not already
     * opened when this object is instantiated, then the code that opens 
     * the stream should also set the character stream on this object. 
     * Also, the encoding of the byte stream used by the reader should 
     * also be set on this object, if known.
     *
     * @param charStream The new character stream.
     *
     * @see #setEncoding
     */
    public void setCharacterStream(Reader charStream) {
        fCharStream = charStream;
    } // setCharacterStream(Reader)

    /** Returns the character stream. */
    public Reader getCharacterStream() {
        return fCharStream;
    } // getCharacterStream():Reader

    /**
     * Sets the encoding of the stream.
     *
     * @param encoding The new encoding.
     */
    public void setEncoding(String encoding) {
        fEncoding = encoding;
    } // setEncoding(String)

    /** Returns the encoding of the stream, or null if not known. */
    public String getEncoding() {
        return fEncoding;
    } // getEncoding():String

} // class XMLInputSource