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package org.netbeans.api.editor.mimelookup.test;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.netbeans.api.editor.mimelookup.MimePath;
import org.netbeans.spi.editor.mimelookup.MimeDataProvider;
import org.openide.util.Lookup;
import org.openide.util.lookup.Lookups;
import org.openide.util.lookup.ProxyLookup;
/**
* Mock implementation of MimeLookup. Initially the mime lookup is empty. An instance
* is automatically installed in <code>META-INF/services</code>.
*
* <p>Example:
*
* <pre>
* MimePath mimePath = MimePath.parse("text/x-abc");
* MockMimeLookup.setInstances(mimePath, new TestFoldManagerFactory());
*
* FoldManagerFactory f = MimeLookup.getLookup(mimePath).lookup(FoldManagerFactory.class);
* </pre>
*/
public final class MockMimeLookup implements MimeDataProvider {
private static final Map<MimePath, Lkp> MAP = new HashMap<MimePath, Lkp>();
/**
* Sets the lookup for <code>mimePath</code> with zero or more delegate lookups.
*
* @param mimePath The mime path to set the lookup for.
* @param lookups The delegate lookups.
*/
public static void setLookup(MimePath mimePath, Lookup... lookups) {
Lkp toUpdate = null;
synchronized (MAP) {
Lkp lkp = MAP.get(mimePath);
if (lkp == null) {
lkp = new Lkp(lookups);
MAP.put(mimePath, lkp);
} else {
toUpdate = lkp;
}
}
if (toUpdate != null) {
toUpdate.set(lookups);
}
}
/**
* Sets the lookup for <code>mimePath</code> with some fixed instances.
*
* @param mimePath The mime path to set the lookup for.
* @param instances The instances to set.
*/
public static void setInstances(MimePath mimePath, Object... instances) {
setLookup(mimePath, Lookups.fixed(instances));
}
/** Don't use this directly. */
public MockMimeLookup() {
}
/** You can call it, but it's probably not what you want. */
public @Override Lookup getLookup(MimePath mimePath) {
synchronized (MAP) {
List<String> paths = Collections.singletonList(mimePath.getPath());
try {
Method m = MimePath.class.getDeclaredMethod("getInheritedPaths", String.class, String.class); //NOI18N
m.setAccessible(true);
@SuppressWarnings("unchecked")
List<String> ret = (List<String>) m.invoke(mimePath, null, null);
paths = ret;
} catch (Exception e) {
throw new IllegalStateException("Can't call org.netbeans.api.editor.mimelookup.MimePath.getInheritedPaths method.", e); //NOI18N
}
List<Lookup> lookups = new ArrayList<Lookup>(paths.size());
for(String path : paths) {
MimePath mp = MimePath.parse(path);
Lkp lookup = MAP.get(mp);
if (lookup == null) {
lookup = new Lkp();
MAP.put(mp, lookup);
}
lookups.add(lookup);
}
return new ProxyLookup(lookups.toArray(new Lookup [lookups.size()]));
}
}
private static final class Lkp extends ProxyLookup {
public Lkp(Lookup... lookups) {
super(lookups);
}
public void set(Lookup... lookups) {
super.setLookups(lookups);
}
}
}