propertiesprovider.java

来自「resetful样式的ws样例,一种面向资源的webservices服务」· Java 代码 · 共 77 行

/*
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://jersey.dev.java.net/CDDL+GPL.html
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 */

package com.sun.jersey.samples.entityprovider;

import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Properties;
import javax.ws.rs.ProduceMime;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;

/**
 * Entity provider for encoding java.util.Properties.
 *
 * @author [e-mail]
 */
@ProduceMime("text/plain")
@Provider
public class PropertiesProvider implements MessageBodyWriter<Properties> {
    
    public void writeTo(Properties p, 
            Class<?> type, Type genericType, Annotation annotations[],
            MediaType mediaType, MultivaluedMap<String, Object> headers, 
            OutputStream out) throws IOException {
        // Store the Properties instance using the key/value pair format
        p.store(out, null);
    }

    public boolean isWriteable(Class<?> type, Type genericType, Annotation annotations[]) {
        // Only support the Properties class and inherited classes of
        return Properties.class.isAssignableFrom(type);
    }

    public long getSize(Properties p) {
        return -1;
    }
}