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040: */
041:
042: package org.openide.util.lookup;
043:
044: import org.netbeans.performance.Benchmark;
045: import java.util.*;
046: import org.openide.util.Lookup;
047: import org.openide.util.lookup.*;
048:
049: /**
050: * Comparison beween tree lookup structure and flat lookup structure.
051: * Uses three different Lookup configurations:
052: * <UL><LI>ProxyLookup containing 16 InstanceLookups
053: * <LI>ProxyLookup containing 2 ProxyLookups of 8 InstanceLookups each
054: * <LI>ProxyLookup of 2 ProxyLookups of 2 ProxyLookups of 4 InstanceLookups each
055: * </UL>
056: */
057: public class ProxyLookupTest extends Benchmark {
058:
059: public ProxyLookupTest(String name) {
060: super (name, new String[] { "tree3", "tree2", "flat" });
061: }
062:
063: private Lookup lookup;
064:
065: protected void setUp() {
066: String type = (String) getArgument();
067: if ("tree3".equals(type)) {
068: lookup = new ProxyLookup(new Lookup[] {
069: new ProxyLookup(new Lookup[] { createProxy(4),
070: createProxy(4) }),
071: new ProxyLookup(new Lookup[] { createProxy(4),
072: createProxy(4) }) });
073: } else if ("tree2".equals(type)) {
074: lookup = new ProxyLookup(new Lookup[] { createProxy(8),
075: createProxy(8) });
076: } else {
077: lookup = createProxy(16);
078: }
079: }
080:
081: private Lookup createOne() {
082: InstanceContent ic = new InstanceContent();
083: ic.add(new Object());
084: ic.add("");
085: return new AbstractLookup(ic);
086: }
087:
088: private Lookup createProxy(int subs) {
089: Lookup[] delegates = new Lookup[subs];
090: for (int i = 0; i < subs; i++)
091: delegates[i] = createOne();
092: return new ProxyLookup(delegates);
093: }
094:
095: protected void tearDown() {
096: lookup = null;
097: }
098:
099: public void testLookupObject() throws Exception {
100: int count = getIterationCount();
101:
102: while (count-- > 0) {
103: // do the stuff here,
104: lookup.lookup(Object.class);
105: }
106: }
107:
108: public void testLookupString() throws Exception {
109: int count = getIterationCount();
110:
111: while (count-- > 0) {
112: // do the stuff here,
113: lookup.lookup(String.class);
114: }
115: }
116:
117: public void testAllInstances() throws Exception {
118: int count = getIterationCount();
119: Lookup.Result result = lookup.lookup(new Lookup.Template(
120: String.class));
121:
122: while (count-- > 0) {
123: // do the stuff here,
124: Collection c = result.allInstances();
125: }
126: }
127:
128: public void testIterateInstances() throws Exception {
129: int count = getIterationCount();
130: Lookup.Result result = lookup.lookup(new Lookup.Template(
131: String.class));
132:
133: while (count-- > 0) {
134: // do the stuff here,
135: Iterator i = result.allInstances().iterator();
136: while (i.hasNext())
137: i.next();
138: }
139: }
140:
141: public static void main(String[] args) {
142: junit.textui.TestRunner.run(new junit.framework.TestSuite(
143: ProxyLookupTest.class));
144: }
145: }
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