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comparison src/org/tmatesoft/hg/repo/HgChangelog.java @ 423:9c9c442b5f2e

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Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 23 Mar 2012 22:51:18 +0100
parents 7f136a3fa671
children 6437d261048a
comparison
equal deleted inserted replaced
422:5d1cc7366d04 423:9c9c442b5f2e
30 import java.util.Locale; 30 import java.util.Locale;
31 import java.util.Map; 31 import java.util.Map;
32 import java.util.TimeZone; 32 import java.util.TimeZone;
33 33
34 import org.tmatesoft.hg.core.HgBadArgumentException; 34 import org.tmatesoft.hg.core.HgBadArgumentException;
35 import org.tmatesoft.hg.core.HgException;
36 import org.tmatesoft.hg.core.HgInvalidControlFileException;
37 import org.tmatesoft.hg.core.HgInvalidRevisionException;
38 import org.tmatesoft.hg.core.Nodeid; 35 import org.tmatesoft.hg.core.Nodeid;
36 import org.tmatesoft.hg.internal.Callback;
39 import org.tmatesoft.hg.internal.DataAccess; 37 import org.tmatesoft.hg.internal.DataAccess;
40 import org.tmatesoft.hg.internal.IterateControlMediator; 38 import org.tmatesoft.hg.internal.IterateControlMediator;
41 import org.tmatesoft.hg.internal.Lifecycle; 39 import org.tmatesoft.hg.internal.Lifecycle;
42 import org.tmatesoft.hg.internal.Pool; 40 import org.tmatesoft.hg.internal.Pool;
43 import org.tmatesoft.hg.internal.RevlogStream; 41 import org.tmatesoft.hg.internal.RevlogStream;
105 public RawChangeset changeset(Nodeid nid) throws HgInvalidControlFileException, HgInvalidRevisionException { 103 public RawChangeset changeset(Nodeid nid) throws HgInvalidControlFileException, HgInvalidRevisionException {
106 int x = getRevisionIndex(nid); 104 int x = getRevisionIndex(nid);
107 return range(x, x).get(0); 105 return range(x, x).get(0);
108 } 106 }
109 107
108 @Callback
110 public interface Inspector { 109 public interface Inspector {
111 // TODO describe whether cset is new instance each time 110 /**
112 // describe what revisionNumber is when Inspector is used with HgBundle (BAD_REVISION or bundle's local order?) 111 * Access next changeset
113 void next(int revisionNumber, Nodeid nodeid, RawChangeset cset); 112 * TODO describe what revisionNumber is when Inspector is used with HgBundle (BAD_REVISION or bundle's local order?)
113 *
114 * @param revisionIndex index of revision being inspected, local to the inspected object
115 * @param nodeid revision being inspected
116 * @param cset changeset raw data
117 */
118 void next(int revisionIndex, Nodeid nodeid, RawChangeset cset);
114 } 119 }
115 120
116 /** 121 /**
117 * Unlike regular {@link Inspector}, this one supplies changeset revision along with its parents and children according 122 * Unlike regular {@link Inspector}, this one supplies changeset revision along with its parents and children according
118 * to parent information of the revlog this inspector visits. 123 * to parent information of the revlog this inspector visits.
384 inspector = delegate; 389 inspector = delegate;
385 usersPool = new Pool<String>(); 390 usersPool = new Pool<String>();
386 progressHelper = ProgressSupport.Factory.get(delegate); 391 progressHelper = ProgressSupport.Factory.get(delegate);
387 } 392 }
388 393
389 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) throws HgException { 394 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
390 try { 395 try {
391 byte[] data = da.byteArray(); 396 byte[] data = da.byteArray();
392 cset.init(data, 0, data.length, usersPool); 397 cset.init(data, 0, data.length, usersPool);
393 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse 398 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse
394 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset); 399 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
395 progressHelper.worked(1); 400 progressHelper.worked(1);
401 } catch (HgBadArgumentException ex) {
402 // see below about better exception
403 throw new HgInvalidControlFileException("Failed reading changelog", ex, null).setRevisionIndex(revisionNumber);
396 } catch (IOException ex) { 404 } catch (IOException ex) {
397 throw new HgException(ex); // XXX need better exception, perhaps smth like HgChangelogException (extends HgInvalidControlFileException) 405 // XXX need better exception, perhaps smth like HgChangelogException (extends HgInvalidControlFileException)
406 throw new HgInvalidControlFileException("Failed reading changelog", ex, null).setRevisionIndex(revisionNumber);
398 } 407 }
399 if (iterateControl != null) { 408 if (iterateControl != null) {
400 iterateControl.checkCancelled(); 409 iterateControl.checkCancelled();
401 } 410 }
402 } 411 }