--- /dev/null	2012-12-18 12:25:03.000000000 +0000
+++ new/src/share/classes/jdk/internal/util/xml/impl/Attrs.java	2012-12-18 12:25:03.000000000 +0000
@@ -0,0 +1,430 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.internal.util.xml.impl;
+
+import jdk.internal.org.xml.sax.Attributes;
+
+public class Attrs implements Attributes {
+
+    /**
+     * Attributes string array. Each individual attribute is represented by four
+     * strings: namespace URL(+0), qname(+1), local name(+2), value(+3),
+     * type(+4), declared["d"] and default["D"](+5). In order to find attribute
+     * by the attrubute index, the attribute index MUST be multiplied by 8. The
+     * result will point to the attribute namespace URL.
+     */
+    /* pkg */ String[] mItems;
+    /**
+     * Number of attributes in the attributes string array.
+     */
+    private char mLength;
+    /**
+     * current index
+     */
+    private char mAttrIdx = 0;
+
+    /**
+     * Constructor.
+     */
+    public Attrs() {
+        //		The default number of attributies capacity is 8.
+        mItems = new String[(8 << 3)];
+    }
+
+    /**
+     * Sets up the number of attributes and ensure the capacity of the attribute
+     * string array.
+     *
+     * @param length The number of attributes in the object.
+     */
+    public void setLength(char length) {
+        if (length > ((char) (mItems.length >> 3))) {
+            mItems = new String[length << 3];
+        }
+        mLength = length;
+    }
+
+    /**
+     * Return the number of attributes in the list.
+     *
+     * <p>Once you know the number of attributes, you can iterate through the
+     * list.</p>
+     *
+     * @return The number of attributes in the list.
+     * @see #getURI(int)
+     * @see #getLocalName(int)
+     * @see #getQName(int)
+     * @see #getType(int)
+     * @see #getValue(int)
+     */
+    public int getLength() {
+        return mLength;
+    }
+
+    /**
+     * Look up an attribute's Namespace URI by index.
+     *
+     * @param index The attribute index (zero-based).
+     * @return The Namespace URI, or the empty string if none is available, or
+     * null if the index is out of range.
+     * @see #getLength
+     */
+    public String getURI(int index) {
+        return ((index >= 0) && (index < mLength))
+                ? (mItems[index << 3])
+                : null;
+    }
+
+    /**
+     * Look up an attribute's local name by index.
+     *
+     * @param index The attribute index (zero-based).
+     * @return The local name, or the empty string if Namespace processing is
+     * not being performed, or null if the index is out of range.
+     * @see #getLength
+     */
+    public String getLocalName(int index) {
+        return ((index >= 0) && (index < mLength))
+                ? (mItems[(index << 3) + 2])
+                : null;
+    }
+
+    /**
+     * Look up an attribute's XML 1.0 qualified name by index.
+     *
+     * @param index The attribute index (zero-based).
+     * @return The XML 1.0 qualified name, or the empty string if none is
+     * available, or null if the index is out of range.
+     * @see #getLength
+     */
+    public String getQName(int index) {
+        if ((index < 0) || (index >= mLength)) {
+            return null;
+        }
+        return mItems[(index << 3) + 1];
+    }
+
+    /**
+     * Look up an attribute's type by index.
+     *
+     * <p>The attribute type is one of the strings "CDATA", "ID", "IDREF",
+     * "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY", "ENTITIES", or "NOTATION"
+     * (always in upper case).</p>
+     *
+     * <p>If the parser has not read a declaration for the attribute, or if the
+     * parser does not report attribute types, then it must return the value
+     * "CDATA" as stated in the XML 1.0 Recommentation (clause 3.3.3,
+     * "Attribute-Value Normalization").</p>
+     *
+     * <p>For an enumerated attribute that is not a notation, the parser will
+     * report the type as "NMTOKEN".</p>
+     *
+     * @param index The attribute index (zero-based).
+     * @return The attribute's type as a string, or null if the index is out of
+     * range.
+     * @see #getLength
+     */
+    public String getType(int index) {
+        return ((index >= 0) && (index < (mItems.length >> 3)))
+                ? (mItems[(index << 3) + 4])
+                : null;
+    }
+
+    /**
+     * Look up an attribute's value by index.
+     *
+     * <p>If the attribute value is a list of tokens (IDREFS, ENTITIES, or
+     * NMTOKENS), the tokens will be concatenated into a single string with each
+     * token separated by a single space.</p>
+     *
+     * @param index The attribute index (zero-based).
+     * @return The attribute's value as a string, or null if the index is out of
+     * range.
+     * @see #getLength
+     */
+    public String getValue(int index) {
+        return ((index >= 0) && (index < mLength))
+                ? (mItems[(index << 3) + 3])
+                : null;
+    }
+
+    /**
+     * Look up the index of an attribute by Namespace name.
+     *
+     * @param uri The Namespace URI, or the empty string if the name has no
+     * Namespace URI.
+     * @param localName The attribute's local name.
+     * @return The index of the attribute, or -1 if it does not appear in the
+     * list.
+     */
+    public int getIndex(String uri, String localName) {
+        char len = mLength;
+        for (char idx = 0; idx < len; idx++) {
+            if ((mItems[idx << 3]).equals(uri)
+                    && mItems[(idx << 3) + 2].equals(localName)) {
+                return idx;
+            }
+        }
+        return -1;
+    }
+
+    /**
+     * Look up the index of an attribute by Namespace name.
+     *
+     * @param uri The Namespace URI, or the empty string if the name has no
+     * Namespace URI. <code>null</code> value enforce the search by the local
+     * name only.
+     * @param localName The attribute's local name.
+     * @return The index of the attribute, or -1 if it does not appear in the
+     * list.
+     */
+    /* pkg */ int getIndexNullNS(String uri, String localName) {
+        char len = mLength;
+        if (uri != null) {
+            for (char idx = 0; idx < len; idx++) {
+                if ((mItems[idx << 3]).equals(uri)
+                        && mItems[(idx << 3) + 2].equals(localName)) {
+                    return idx;
+                }
+            }
+        } else {
+            for (char idx = 0; idx < len; idx++) {
+                if (mItems[(idx << 3) + 2].equals(localName)) {
+                    return idx;
+                }
+            }
+        }
+        return -1;
+    }
+
+    /**
+     * Look up the index of an attribute by XML 1.0 qualified name.
+     *
+     * @param qName The qualified (prefixed) name.
+     * @return The index of the attribute, or -1 if it does not appear in the
+     * list.
+     */
+    public int getIndex(String qName) {
+        char len = mLength;
+        for (char idx = 0; idx < len; idx++) {
+            if (mItems[(idx << 3) + 1].equals(qName)) {
+                return idx;
+            }
+        }
+        return -1;
+    }
+
+    /**
+     * Look up an attribute's type by Namespace name.
+     *
+     * <p>See {@link #getType(int) getType(int)} for a description of the
+     * possible types.</p>
+     *
+     * @param uri The Namespace URI, or the empty String if the name has no
+     * Namespace URI.
+     * @param localName The local name of the attribute.
+     * @return The attribute type as a string, or null if the attribute is not
+     * in the list or if Namespace processing is not being performed.
+     */
+    public String getType(String uri, String localName) {
+        int idx = getIndex(uri, localName);
+        return (idx >= 0) ? (mItems[(idx << 3) + 4]) : null;
+    }
+
+    /**
+     * Look up an attribute's type by XML 1.0 qualified name.
+     *
+     * <p>See {@link #getType(int) getType(int)} for a description of the
+     * possible types.</p>
+     *
+     * @param qName The XML 1.0 qualified name.
+     * @return The attribute type as a string, or null if the attribute is not
+     * in the list or if qualified names are not available.
+     */
+    public String getType(String qName) {
+        int idx = getIndex(qName);
+        return (idx >= 0) ? (mItems[(idx << 3) + 4]) : null;
+    }
+
+    /**
+     * Look up an attribute's value by Namespace name.
+     *
+     * <p>See {@link #getValue(int) getValue(int)} for a description of the
+     * possible values.</p>
+     *
+     * @param uri The Namespace URI, or the empty String if the name has no
+     * Namespace URI.
+     * @param localName The local name of the attribute.
+     * @return The attribute value as a string, or null if the attribute is not
+     * in the list.
+     */
+    public String getValue(String uri, String localName) {
+        int idx = getIndex(uri, localName);
+        return (idx >= 0) ? (mItems[(idx << 3) + 3]) : null;
+    }
+
+    /**
+     * Look up an attribute's value by XML 1.0 qualified name.
+     *
+     * <p>See {@link #getValue(int) getValue(int)} for a description of the
+     * possible values.</p>
+     *
+     * @param qName The XML 1.0 qualified name.
+     * @return The attribute value as a string, or null if the attribute is not
+     * in the list or if qualified names are not available.
+     */
+    public String getValue(String qName) {
+        int idx = getIndex(qName);
+        return (idx >= 0) ? (mItems[(idx << 3) + 3]) : null;
+    }
+
+    /**
+     * Returns false unless the attribute was declared in the DTD. This helps
+     * distinguish two kinds of attributes that SAX reports as CDATA: ones that
+     * were declared (and hence are usually valid), and those that were not (and
+     * which are never valid).
+     *
+     * @param index The attribute index (zero-based).
+     * @return true if the attribute was declared in the DTD, false otherwise.
+     * @exception java.lang.ArrayIndexOutOfBoundsException When the supplied
+     * index does not identify an attribute.
+     */
+    public boolean isDeclared(int index) {
+        if ((index < 0) || (index >= mLength)) {
+            throw new ArrayIndexOutOfBoundsException("");
+        }
+
+        return ((mItems[(index << 3) + 5]) != null);
+    }
+
+    /**
+     * Returns false unless the attribute was declared in the DTD. This helps
+     * distinguish two kinds of attributes that SAX reports as CDATA: ones that
+     * were declared (and hence are usually valid), and those that were not (and
+     * which are never valid).
+     *
+     * @param qName The XML qualified (prefixed) name.
+     * @return true if the attribute was declared in the DTD, false otherwise.
+     * @exception java.lang.IllegalArgumentException When the supplied name does
+     * not identify an attribute.
+     */
+    public boolean isDeclared(String qName) {
+        int idx = getIndex(qName);
+        if (idx < 0) {
+            throw new IllegalArgumentException("");
+        }
+
+        return ((mItems[(idx << 3) + 5]) != null);
+    }
+
+    /**
+     * Returns false unless the attribute was declared in the DTD. This helps
+     * distinguish two kinds of attributes that SAX reports as CDATA: ones that
+     * were declared (and hence are usually valid), and those that were not (and
+     * which are never valid).
+     *
+     * <p>Remember that since DTDs do not "understand" namespaces, the namespace
+     * URI associated with an attribute may not have come from the DTD. The
+     * declaration will have applied to the attribute's <em>qName</em>.
+     *
+     * @param uri The Namespace URI, or the empty string if the name has no
+     * Namespace URI.
+     * @param localName The attribute's local name.
+     * @return true if the attribute was declared in the DTD, false otherwise.
+     * @exception java.lang.IllegalArgumentException When the supplied names do
+     * not identify an attribute.
+     */
+    public boolean isDeclared(String uri, String localName) {
+        int idx = getIndex(uri, localName);
+        if (idx < 0) {
+            throw new IllegalArgumentException("");
+        }
+
+        return ((mItems[(idx << 3) + 5]) != null);
+    }
+
+    /**
+     * Returns true unless the attribute value was provided by DTD defaulting.
+     *
+     * @param index The attribute index (zero-based).
+     * @return true if the value was found in the XML text, false if the value
+     * was provided by DTD defaulting.
+     * @exception java.lang.ArrayIndexOutOfBoundsException When the supplied
+     * index does not identify an attribute.
+     */
+    public boolean isSpecified(int index) {
+        if ((index < 0) || (index >= mLength)) {
+            throw new ArrayIndexOutOfBoundsException("");
+        }
+
+        String str = mItems[(index << 3) + 5];
+        return ((str != null) ? (str.charAt(0) == 'd') : true);
+    }
+
+    /**
+     * Returns true unless the attribute value was provided by DTD defaulting.
+     *
+     * <p>Remember that since DTDs do not "understand" namespaces, the namespace
+     * URI associated with an attribute may not have come from the DTD. The
+     * declaration will have applied to the attribute's <em>qName</em>.
+     *
+     * @param uri The Namespace URI, or the empty string if the name has no
+     * Namespace URI.
+     * @param localName The attribute's local name.
+     * @return true if the value was found in the XML text, false if the value
+     * was provided by DTD defaulting.
+     * @exception java.lang.IllegalArgumentException When the supplied names do
+     * not identify an attribute.
+     */
+    public boolean isSpecified(String uri, String localName) {
+        int idx = getIndex(uri, localName);
+        if (idx < 0) {
+            throw new IllegalArgumentException("");
+        }
+
+        String str = mItems[(idx << 3) + 5];
+        return ((str != null) ? (str.charAt(0) == 'd') : true);
+    }
+
+    /**
+     * Returns true unless the attribute value was provided by DTD defaulting.
+     *
+     * @param qName The XML qualified (prefixed) name.
+     * @return true if the value was found in the XML text, false if the value
+     * was provided by DTD defaulting.
+     * @exception java.lang.IllegalArgumentException When the supplied name does
+     * not identify an attribute.
+     */
+    public boolean isSpecified(String qName) {
+        int idx = getIndex(qName);
+        if (idx < 0) {
+            throw new IllegalArgumentException("");
+        }
+
+        String str = mItems[(idx << 3) + 5];
+        return ((str != null) ? (str.charAt(0) == 'd') : true);
+    }
+}