/*

 * 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 com.sun.xml.internal.txw2;

import java.util.AbstractList;

import java.util.Collections;

import java.util.List;

import javax.xml.namespace.QName;

/**

 * Pluggable datatype writer.

 *

 * @author Kohsuke Kawaguchi

 */

public interface DatatypeWriter<DT> {

    /**

     * Gets the Java class that this writer can write.

     *

     * @return

     *      must not be null. Must be the same value always.

     */

    Class<DT> getType();

    /**

     * Prints the given datatype object and appends that result

     * into the given buffer.

     *

     * @param dt

     *      the datatype object to be printed.

     * @param resolver

     *      allows the converter to declare additional namespace prefixes.

     */

    void print(DT dt, NamespaceResolver resolver, StringBuilder buf);

    static final List<DatatypeWriter<?>> BUILTIN = Collections.unmodifiableList(new AbstractList() {

        private DatatypeWriter<?>[] BUILTIN_ARRAY = new DatatypeWriter<?>[] {

            new DatatypeWriter<String>() {

                public Class<String> getType() {

                    return String.class;

                }

                public void print(String s, NamespaceResolver resolver, StringBuilder buf) {

                    buf.append(s);

                }

            },

            new DatatypeWriter<Integer>() {

                public Class<Integer> getType() {

                    return Integer.class;

                }

                public void print(Integer i, NamespaceResolver resolver, StringBuilder buf) {

                    buf.append(i);

                }

            },

            new DatatypeWriter<Float>() {

                public Class<Float> getType() {

                    return Float.class;

                }

                public void print(Float f, NamespaceResolver resolver, StringBuilder buf) {

                    buf.append(f);

                }

            },

            new DatatypeWriter<Double>() {

                public Class<Double> getType() {

                    return Double.class;

                }

                public void print(Double d, NamespaceResolver resolver, StringBuilder buf) {

                    buf.append(d);

                }

            },

            new DatatypeWriter<QName>() {

                public Class<QName> getType() {

                    return QName.class;

                }

                public void print(QName qn, NamespaceResolver resolver, StringBuilder buf) {

                    String p = resolver.getPrefix(qn.getNamespaceURI());

                    if(p.length()!=0)

                        buf.append(p).append(':');

                    buf.append(qn.getLocalPart());

                }

            }

        };

        public DatatypeWriter<?> get(int n) {

          return BUILTIN_ARRAY[n];

        }

        public int size() {

          return BUILTIN_ARRAY.length;

        }

      });

}