/*Copyright (c) 2007, Dennis M. SosnoskiAll rights reserved.Redistribution and use in source and binary forms, with or without modification,are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this   list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice,   this list of conditions and the following disclaimer in the documentation   and/or other materials provided with the distribution. * Neither the name of JiBX nor the names of its contributors may be used   to endorse or promote products derived from this software without specific   prior written permission.THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" ANDANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIEDWARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AREDISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FORANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ONANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THISSOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/package org.jibx.binding.generator;import java.util.HashSet;import java.util.Iterator;import java.util.Set;import org.jibx.schema.attributes.FormChoiceAttribute;import org.jibx.schema.elements.ImportElement;import org.jibx.schema.elements.SchemaElement;/** * External data for a schema definition. This tracks references to other * schemas, along with the associated namespace information. The {@link * #fixReferences()} method actually generates the includes. */public class SchemaHolder extends HolderBase{    /** Actual schema definition. */    private final SchemaElement m_schema;        /** Set of type names defined in schema. */    private final UniqueNameSet m_typeNameSet;        /** Set of element names defined in schema (also used for     group/attributeGroup). */    private final UniqueNameSet m_elementNameSet;        /** Set of schemas imported into this schema. */    private Set m_fixedSet;        /**     * Constructor.     *      * @param uri (<code>null</code> if no-namespace schema)     */    public SchemaHolder(String uri) {        super(uri);        m_schema = new SchemaElement();        m_typeNameSet = new UniqueNameSet();        m_elementNameSet = new UniqueNameSet();        if (uri != null) {            m_schema.setElementFormDefault(FormChoiceAttribute.QUALIFIED_FORM);            m_schema.setTargetNamespace(uri);            m_schema.addNamespaceDeclaration("tns", uri);        }    }        /**     * Get the schema definition.     *     * @return definition     */    public SchemaElement getSchema() {        return m_schema;    }        /**     * Add type name to set defined. This assures uniqueness of the name used,     * if necessary modifying the supplied base name to a unique alternative.     *     * @param base name to try adding     * @return name to be used for type     */    public String addTypeName(String base) {        return m_typeNameSet.add(base);    }        /**     * Add element name to set defined. This assures uniqueness of the name     * used, if necessary modifying the supplied base name to a unique     * alternative. The same set of names is also used for groups and     * attributeGroups, even though these name sets are separate in schema     * terms. Doing things this way avoids the possibility of an element name     * matching a group name with the two representing different structures.     *     * @param base name to try adding     * @return name to be used for element     */    public String addElementName(String base) {        return m_elementNameSet.add(base);    }    /* (non-Javadoc)     * @see org.jibx.binding.generator.HolderBase#addNamespaceDecl(java.lang.String, java.lang.String)     */    protected void addNamespaceDecl(String prefix, String uri) {        m_schema.addNamespaceDeclaration(prefix, uri);    }    /* (non-Javadoc)     * @see org.jibx.binding.generator.HolderBase#fixReferences()     */    public void fixReferences() {        if (m_fixedSet == null) {            m_fixedSet = new HashSet();        }        for (Iterator iter = getReferences().iterator(); iter.hasNext();) {            SchemaHolder holder = (SchemaHolder)iter.next();            if (!m_fixedSet.contains(holder)) {                String ns = holder.getNamespace();                ImportElement imp = new ImportElement();                imp.setLocation(holder.getFileName());                imp.setNamespace(ns);                m_schema.getSchemaChildren().add(imp);                getPrefix(ns);                m_fixedSet.add(holder);            }                    }    }}