com.marintek.isis.wicket.popupbox.applib.PopupWicketBoxSemanticsProvider.java Source code

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Here is the source code for com.marintek.isis.wicket.popupbox.applib.PopupWicketBoxSemanticsProvider.java

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/*
 *  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 com.marintek.isis.wicket.popupbox.applib;

import com.visural.wicket.component.fancybox.Fancybox;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.apache.commons.codec.binary.Base64;
import org.apache.isis.applib.adapters.DefaultsProvider;
import org.apache.isis.applib.adapters.EncoderDecoder;
import org.apache.isis.applib.adapters.Parser;
import org.apache.isis.applib.adapters.ValueSemanticsProvider;

/**
 * For internal use; allows Isis to parse etc.
 */
public class PopupWicketBoxSemanticsProvider implements ValueSemanticsProvider<PopupWicketBox> {

    public boolean isEqualByContent() {
        return true;
    }

    public boolean isImmutable() {
        return true;
    }

    @Override
    public Parser<PopupWicketBox> getParser() {
        return null;
    }

    @Override
    public EncoderDecoder<PopupWicketBox> getEncoderDecoder() {
        // TODO: reconstitute
        return new EncoderDecoder<PopupWicketBox>() {

            public String toEncodedString(PopupWicketBox toEncode) {
                return Base64Serializer.toString(toEncode);
            }

            public PopupWicketBox fromEncodedString(String encodedString) {
                return (PopupWicketBox) Base64Serializer.fromString(encodedString);
            }
        };
    }

    /**
     *
     * @return
     */
    @Override
    public DefaultsProvider<PopupWicketBox> getDefaultsProvider() {
        return null;
    }

}

/**
 * 
 *copied from org.apache.isis.core:isis-core-metamodel
 */
class Base64Serializer {

    public static class Exception extends RuntimeException {

        private static final long serialVersionUID = 1L;

        public Exception(java.lang.Exception e) {
            super(e);
        }
    }

    static Object fromString(String s) {
        final byte[] data = Base64.decodeBase64(s);
        ObjectInputStream ois = null;
        try {
            ois = new ObjectInputStream(new ByteArrayInputStream(data));
            return ois.readObject();
        } catch (IOException e) {
            throw new Base64Serializer.Exception(e);
        } catch (ClassNotFoundException e) {
            throw new Base64Serializer.Exception(e);
        } finally {
            try {
                if (ois != null) {
                    ois.close();
                }
            } catch (IOException e) {
                throw new Base64Serializer.Exception(e);
            }
        }
    }

    static String toString(Serializable serializable) {
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = null;
        try {
            oos = new ObjectOutputStream(baos);
            oos.writeObject(serializable);
            return new String(Base64.encodeBase64(baos.toByteArray()));
        } catch (IOException e) {
            throw new Base64Serializer.Exception(e);
        } finally {
            try {
                if (oos != null) {
                    oos.close();
                }
            } catch (IOException e) {
                throw new Base64Serializer.Exception(e);
            }
        }
    }
}