001: /**
002: * Redistribution and use of this software and associated documentation
003: * ("Software"), with or without modification, are permitted provided
004: * that the following conditions are met:
005: *
006: * 1. Redistributions of source code must retain copyright
007: * statements and notices. Redistributions must also contain a
008: * copy of this document.
009: *
010: * 2. Redistributions in binary form must reproduce the
011: * above copyright notice, this list of conditions and the
012: * following disclaimer in the documentation and/or other
013: * materials provided with the distribution.
014: *
015: * 3. The name "Exolab" must not be used to endorse or promote
016: * products derived from this Software without prior written
017: * permission of Intalio, Inc. For written permission,
018: * please contact info@exolab.org.
019: *
020: * 4. Products derived from this Software may not be called "Exolab"
021: * nor may "Exolab" appear in their names without prior written
022: * permission of Intalio, Inc. Exolab is a registered
023: * trademark of Intalio, Inc.
024: *
025: * 5. Due credit should be given to the Exolab Project
026: * (http://www.exolab.org/).
027: *
028: * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
029: * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
030: * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
031: * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
032: * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
033: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
034: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
035: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
036: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
037: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
038: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
039: * OF THE POSSIBILITY OF SUCH DAMAGE.
040: *
041: * Copyright 2002 (C) Intalio, Inc. All Rights Reserved.
042: *
043: * $Id: SchemaUnmarshallerState.java 6230 2006-09-19 07:56:07Z wguttmn $
044: */package org.exolab.castor.xml.schema.reader;
045:
046: import org.exolab.castor.xml.schema.Schema;
047:
048: import org.exolab.castor.util.Configuration;
049: import org.exolab.castor.util.LocalConfiguration;
050:
051: import java.util.Hashtable;
052:
053: /**
054: * A class used to save State information for the SchemaUnmarshaller
055: * Roughly speaking it keeps track of all the schemas read.
056: * This is used to prevent infinite loops when importing or including schema.
057: * @author <a href="mailto:blandin@intalio.com">Arnaud Blandin</a>
058: * @version $Revision: 6230 $ $Date: 2004-09-21 08:09:24 -0600 (Tue, 21 Sep 2004) $
059: */
060: class SchemaUnmarshallerState {
061:
062: private Configuration _config = null;
063:
064: private Hashtable _processed = null;
065:
066: /**
067: * A boolean that indicates whether or not to
068: * cache included XML Schemas
069: */
070: boolean cacheIncludedSchemas = false;
071:
072: /**
073: * Creates a new SchemaUnmarshallerState
074: */
075: protected SchemaUnmarshallerState() {
076: _processed = new Hashtable();
077: } //-- SchemaUnmarshallerState
078:
079: /**
080: * Marks the given schema as having been processed.
081: * @param schemaLocation the key identifying the physical location
082: * of the schema to mark.
083: * @param schema the Schema to mark as having
084: * been processed.
085: */
086: void markAsProcessed(String schemaLocation, Schema schema) {
087: _processed.put(schemaLocation, schema);
088: } //-- markAsProcessed
089:
090: /**
091: * Returns true if the given Schema has been marked as processed
092: * @param schema the Schema to check for being marked as processed
093: * @return true if the given Schema has been marked as processed
094: */
095: boolean processed(Schema schema) {
096: return _processed.contains(schema);
097: } //-- processed
098:
099: /**
100: * Returns true if the given schema location has been marked as processed
101: *
102: * @param schemaLocation location the schema location to check for being
103: * marked as processed
104: * @return true if the given schema location has been marked as processed
105: */
106: boolean processed(String schemaLocation) {
107: return _processed.containsKey(schemaLocation);
108: } //-- processed
109:
110: /**
111: * Returns the Configuration to use during reading of the schema, this
112: * is primarily for obtaining a parser instance.
113: *
114: * @return the Configuration.
115: *
116: * @see #setConfiguration
117: */
118: Configuration getConfiguration() {
119: if (_config == null) {
120: _config = LocalConfiguration.getInstance();
121: }
122: return _config;
123: } //-- setConfiguraiton
124:
125: /**
126: * Returns the schema corresponding to the given schemaLocation
127: *
128: * @param schemaLocation the schema location of the schema
129: * @return the schema corresponding to the given schemaLocation
130: */
131: Schema getSchema(String schemaLocation) {
132: return (Schema) _processed.get(schemaLocation);
133: }
134:
135: /**
136: * Sets the Configuration to use during reading of the schema, this
137: * is primarily for obtaining a parser instance.
138: *
139: * @param config the Configuration to set
140: */
141: void setConfiguration(Configuration config) {
142: _config = config;
143: } //-- setConfiguraiton
144:
145: } //-- SchemaUnmarshallerState
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