// Someone better at Generics can yell at me as to how this should have been
// done to use the same code for either objects or strings. Sorry.
public static Map<String, String> selectSubMap(Map<String, String> sm, String selection) {
if (sm == null) return null;
selection = selection.trim();
if (badSelection(selection)) return null;
Map<String, String> retval = new TreeMap<String, String>();
selectSubMap(sm, retval, null, null, selection);
return retval;
}
public static Map<String, Object> selectFullSubMap(Map<String, Object> om, String selection) {
if (om == null) return null;
selection = selection.trim();
if (badSelection(selection)) return null;
Map<String, Object> retval = new TreeMap<String, Object>();
selectSubMap(null, null, om, retval, selection);
return retval;
}
public static void runSamples() {
System.out.println("Running XMLMap (www.mdom.org) Samples...");
debugFlag = false;
// Test the parsing of a Basic string Map
Map<String, String> tm = XMLMap.getMap(simpleText);
// System.out.println("tm="+tm);
// Test the production of a basic map
Map<String, String> simpleMap = new TreeMap<String, String>();
simpleMap.put("/a/b!x", "X");
simpleMap.put("/a/b", "B");
simpleMap.put("/a/c/d", "D");
System.out.println("simpleMap\n" + simpleMap);
String simpleXml = XMLMap.getXML(simpleMap, true);
System.out.println("simpleXml\n" + simpleXml);
unitTest(simpleXml, false);
// Do a select of a subMap
Map<String, String> subMap = XMLMap.selectSubMap(tm, "/a/c");
Map<String, Object> joinedMap = new TreeMap<String, Object>();
System.out.println("subMap=" + subMap);
joinedMap.put("/top/id", "1234");
joinedMap.put("/top/fun", subMap); // Graft the map onto this node
System.out.println("joinedMap\n" + joinedMap);
String joinedXml = XMLMap.getXML(joinedMap, true);
System.out.println("joinedXML\n" + joinedXml);
unitTest(joinedXml, false);
// Do an Array
Map<String, Object> arrayMap = new TreeMap<String, Object>();
String[] arrayStr = {"first", "second", "third"};
arrayMap.put("/root/stuff", arrayStr);
System.out.println("arrayMap\n" + arrayMap);
String arrayXml = XMLMap.getXML(arrayMap, true);
System.out.println("arrayXml\n" + arrayXml);
unitTest(arrayXml, false);
// Make a Map that is a combination of Maps, String, and Arrays
Map<String, Object> newMap = new TreeMap<String, Object>();
newMap.put("/Root/milton", "Root-milton");
newMap.put("/Root/joe", "Root-joe");
Map<String, String> m2 = new TreeMap<String, String>();
m2.put("/fred/a", "fred-a");
m2.put("/fred/b", "fred-b");
newMap.put("/Root/freds", m2);
// Add a list of maps
// <Root>
// <maps>
// <map>
// <key>key-0</key>
// <val>val-0</val>
// </map>
// <map>
// <key>key-1</key>
// <val>val-1</val>
// </map>
// </maps>
// </Root>
List<Map<String, String>> lm = new ArrayList<Map<String, String>>();
Map<String, String> m3 = null;
m3 = new TreeMap<String, String>();
m3.put("/key", "key-0");
m3.put("/val", "val-0");
lm.add(m3);
m3 = new TreeMap<String, String>();
m3.put("/key", "key-1");
m3.put("/val", "val-1");
lm.add(m3);
newMap.put("/Root/maps/map", lm);
// Add an array of Strings
// <Root>
// <array>first</array>
// <array>second</array>
// <array>third</array>
// </Root>
String[] strar = {"first", "second", "third"};
newMap.put("/Root/array", strar);
// Add a list of Maps - this is a bit of a weird application - mostly as a
// completeness test to insure lists of maps and arrays are equivalent. Also
// since the getFullMap returns maps, not Arrays of strings, this is necessary
// to insure symmetry - i.e. we can take a map structure we produce and
// regenerate the XML. Most users will not use this form in construction.
//
// <Root>
// <item>item-1</item>
// <item>item-2</item>
// </Root>
List<Map<String, String>> l1 = new ArrayList<Map<String, String>>();
Map<String, String> m4 = new TreeMap<String, String>();
m4.put("/", "item-1");
l1.add(m4);
Map<String, String> m5 = new TreeMap<String, String>();
m5.put("/", "item-2");
l1.add(m5);
newMap.put("/Root/item", l1);
// Put in using the XMLMap bracket Syntax - not a particularly good
// Way to represent multiple items - it is just here for completeness.
newMap.put("/Root/anns/ann[0]", "Root-ann[0]");
newMap.put("/Root/anns/ann[1]", "Root-ann[1]");
newMap.put("/Root/bobs/bob[0]/key", "Root-bobs-bob[0]-key");
newMap.put("/Root/bobs/bob[0]/val", "Root-bobs-bob[0]-val");
newMap.put("/Root/bobs/bob[1]/key", "Root-bobs-bob[1]-key");
newMap.put("/Root/bobs/bob[1]/val", "Root-bobs-bob[1]-val");
// This is not allowed because maps cannot have duplicates
/*
Map<String,String> m6 = new TreeMap<String,String>();
m5.put("/two", "two-1");
m5.put("/two", "two-2");
newMap.put("/Root", m6);
*/
// Take the Map - turn it into XML and then parse the returned
// XML into a second map - take the second map and produce more XML
// If all goes well, the two generated blobs of XML should be the
// same. If anything goes wrong - we re-do it with lots of debug
String complexXml = null;
boolean success = false;
debugFlag = false;
try {
complexXml = XMLMap.getXML(newMap, true);
success = true;
} catch (Exception e) {
success = false;
}
// If we fail - do it again with deep levels of verbosity
if (success) {
unitTest(complexXml, false);
} else {
debugFlag = true;
System.out.println("\n MISMATCH AND/OR SOME ERROR HAS OCCURED - REDO in VERBODE MODE");
System.out.println("Starting out newMap=" + newMap);
complexXml = XMLMap.getXML(newMap, true);
unitTest(complexXml, false);
debugFlag = false;
}
// A different example - iterating through nested sets - demonstrating the short form
// of getSites() with the first parameter a string -the commented code below is the long form.
// Map<String,Object> theMap = XMLMap.getFullMap(sitesText);
// List<Map<String,Object>> theList = XMLMap.getList(theMap, "/sites/site");
// for ( Map<String,Object> siteMap : theList) {
// The short form using convenience method if you don't need the map for anything else
System.out.println("\nParsing Sites Structure");
for (Map<String, Object> siteMap : XMLMap.getList(sitesText, "/sites/site")) {
System.out.println("Site=" + siteMap);
System.out.println("Id=" + XMLMap.getString(siteMap, "/id"));
for (Map<String, Object> toolMap : XMLMap.getList(siteMap, "/tools/tool")) {
System.out.println("Tool=" + toolMap);
System.out.println("ToolId=" + XMLMap.getString(toolMap, "/toolid"));
for (Map<String, Object> property : XMLMap.getList(toolMap, "/properties/property")) {
System.out.println("key=" + XMLMap.getString(property, "/key"));
System.out.println("val=" + XMLMap.getString(property, "/val"));
}
}
}
// Lets parse some RSS as a final kind of easy but quite practical test
debugFlag = false;
System.out.println("\nParsing RSS Feed");
// System.out.println(XMLMap.prettyPrint(rssText));
Map<String, Object> rssFullMap = XMLMap.getFullMap(rssText);
System.out.println("RSS Full Map\n" + rssFullMap);
System.out.println("Rss Version=" + XMLMap.getString(rssFullMap, "/rss!version"));
System.out.println("Chan-desc=" + XMLMap.getString(rssFullMap, "/rss/channel/description"));
System.out.println("Chan-title=" + XMLMap.getString(rssFullMap, "/rss/channel/title"));
Map<String, String> rssStringMap = XMLMap.flattenMap(rssFullMap);
System.out.println("RSS Flat String Only Map\n" + rssStringMap);
System.out.println("Rss Version=" + rssStringMap.get("/rss!version"));
System.out.println("Chan-desc=" + rssStringMap.get("/rss/channel/description"));
System.out.println("Chan-title=" + rssStringMap.get("/rss/channel/title"));
for (Map<String, Object> rssItem : XMLMap.getList(rssFullMap, "/rss/channel/item")) {
System.out.println("=== Item ===");
System.out.println(" Item-title=" + XMLMap.getString(rssItem, "/title"));
System.out.println(" Item-description=" + XMLMap.getString(rssItem, "/description"));
System.out.println(" Item-link=" + XMLMap.getString(rssItem, "/link"));
}
}
