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package org.glassfish.jersey.internal.util.collection;

import java.lang.reflect.Constructor;
import java.util.List;

import javax.ws.rs.core.MultivaluedHashMap;
import javax.ws.rs.core.MultivaluedMap;

/**
 * An implementation of {@link MultivaluedMap} where keys and values are
 * instances of String.
 * 

* This map has an additional ability to instantiate classes using the * individual string values as a constructor parameters. * * @author Paul Sandoz * @author Marek Potociar (marek.potociar at oracle.com) */ public class MultivaluedStringMap extends MultivaluedHashMap { static final long serialVersionUID = -6052320403766368902L; public MultivaluedStringMap(MultivaluedMap map) { super(map); } public MultivaluedStringMap(int initialCapacity, float loadFactor) { super(initialCapacity, loadFactor); } public MultivaluedStringMap(int initialCapacity) { super(initialCapacity); } public MultivaluedStringMap() { super(); } @Override protected void addFirstNull(List values) { values.add(""); } @Override protected void addNull(List values) { values.add(0, ""); } public final A getFirst(String key, Class type) { String value = getFirst(key); if (value == null) { return null; } Constructor c = null; try { c = type.getConstructor(String.class); } catch (Exception ex) { throw new IllegalArgumentException(type.getName() + " has no String constructor", ex); } A retVal = null; try { retVal = c.newInstance(value); } catch (Exception ex) { } return retVal; } @SuppressWarnings("unchecked") public final A getFirst(String key, A defaultValue) { String value = getFirst(key); if (value == null) { return defaultValue; } Class type = (Class) defaultValue.getClass(); Constructor c = null; try { c = type.getConstructor(String.class); } catch (Exception ex) { throw new IllegalArgumentException(type.getName() + " has no String constructor", ex); } A retVal = defaultValue; try { retVal = c.newInstance(value); } catch (Exception ex) { } return retVal; } }





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