Hi Robert,
I've hit a problem with Maps and arrays that I haven't been able to resolve. I would
like to write/read a Map that has an array (either java array or collection) as the
values of the map. When I write, everything looks ok. When I read back in, I'm
getting a map with no values. If I wrap the array or collection in another bean (so
the value of the map is a bean, not an array or collection), it will work. I can live
with that if I need to, but I would prefer to have the map values be arrays or
collections directly. I haven't been able to track down a good way to do that-- I'm
hoping you'll see a relatively easy solution I'm missing :).
Below is a test case that shows the problem. Any suggestions?
Thanks,
Brian
AddressBook.java
---------------------------------
package org.apache.commons.betwixt.io.read;
import java.util.HashMap;
/**
* @author Brian Pugh
*/
public class AddressBook {
private HashMap addressesMap = new HashMap();
public HashMap getAddressBookItems() {
return addressesMap;
}
public void setAddressBookItems(HashMap map) {
this.addressesMap = map;
}
public void addAddressBookItem(String name, AddressBean[] addresses) {
addressesMap.put(name, addresses);
}
}
Test case (patch to TestMaps.java)
----------------------------------------------------
Index: src/test/org/apache/commons/betwixt/io/read/TestMaps.java
===================================================================
RCS file:
/home/cvspublic/jakarta-commons/betwixt/src/test/org/apache/commons/betwixt/io/read/Attic/TestMaps.java,v
retrieving revision 1.1.2.1
diff -u -r1.1.2.1 TestMaps.java
--- src/test/org/apache/commons/betwixt/io/read/TestMaps.java 22 Feb 2004 17:09:29
-0000 1.1.2.1
+++ src/test/org/apache/commons/betwixt/io/read/TestMaps.java 16 Apr 2004 20:46:55
-0000
@@ -132,4 +132,60 @@
}
+ public void testMapWithArray() throws Exception {
+
+ AddressBook addressBook = new AddressBook();
+ AddressBean[] johnsAddresses = new AddressBean[2];
+ johnsAddresses[0] = new AddressBean("12 here", "Chicago", "USA", "1234");
+ johnsAddresses[1] = new AddressBean("333 there", "Los Angeles", "USA", "99999");
+ String name = "John";
+ addressBook.addAddressBookItem(name, johnsAddresses);
+ StringWriter outputWriter = new StringWriter();
+ outputWriter.write("<?xml version='1.0' ?>\n");
+ BeanWriter beanWriter = new BeanWriter(outputWriter);
+ beanWriter.enablePrettyPrint();
+ beanWriter.write(addressBook);
+ System.out.println(outputWriter.toString());
+ String xml = "<?xml version='1.0' ?>\n" +
+ " <AddressBook id=\"1\">\n" +
+ " <addressBookItems>\n" +
+ " <entry id=\"2\">\n" +
+ " <key>John</key>\n" +
+ " <value id=\"3\">\n" +
+ " <AddressBean id=\"4\">\n" +
+ " <city>Chicago</city>\n" +
+ " <code>1234</code>\n" +
+ " <country>USA</country>\n" +
+ " <street>12 here</street>\n" +
+ " </AddressBean>\n" +
+ " <AddressBean id=\"5\">\n" +
+ " <city>Los Angeles</city>\n" +
+ " <code>99999</code>\n" +
+ " <country>USA</country>\n" +
+ " <street>333 there</street>\n" +
+ " </AddressBean>\n" +
+ " </value>\n" +
+ " </entry>\n" +
+ " </addressBookItems>\n" +
+ " </AddressBook>\n";
+
+ assertEquals(xml, outputWriter.toString());
+ BeanReader reader = new BeanReader();
+ reader.registerBeanClass(AddressBook.class);
+ StringReader xmlReader = new StringReader(outputWriter.toString());
+ AddressBook result = (AddressBook) reader.parse(xmlReader);
+ assertNotNull("Expected to get an AddressBook!", result);
+ assertNotNull("Expected AddressBook to have some address entryitems!",
result.getAddressBookItems());
+ AddressBean []resultAddresses = (AddressBean[])
result.getAddressBookItems().get(name);
+ assertNotNull("Expected to have some addresses for " + name, resultAddresses);
+ assertEquals("Got wrong city in first address for " + name,
+ johnsAddresses[0].getCity(),
+ resultAddresses[0].getCity());
+ assertEquals("Got wrong city in second address for " + name,
+ johnsAddresses[1].getCity(),
+ resultAddresses[1].getCity());
+
+
+ }
+
}
---------------------------------
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