You are viewing a plain text version of this content. The canonical link for it is here.
Posted to oak-commits@jackrabbit.apache.org by mr...@apache.org on 2015/03/05 13:38:36 UTC

svn commit: r1664332 - in /jackrabbit/oak/branches/1.0: ./ oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/ oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/ oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/

Author: mreutegg
Date: Thu Mar  5 12:38:35 2015
New Revision: 1664332

URL: http://svn.apache.org/r1664332
Log:
OAK-2562: DiffCache is inefficient

Revert on 1.0 branch until this change is better tested

Removed:
    jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreDiffTest.java
Modified:
    jackrabbit/oak/branches/1.0/   (props changed)
    jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/JsopDiff.java
    jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeState.java
    jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
    jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/AbstractMongoConnectionTest.java
    jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreIT.java

Propchange: jackrabbit/oak/branches/1.0/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Mar  5 12:38:35 2015
@@ -1,2 +1,2 @@
-/jackrabbit/oak/trunk:1584578,1584602,1584614,1584616,1584709,1584781,1584937,1585297,1585304-1585305,1585420,1585424,1585427,1585448,1585465,1585468,1585486,1585497,1585509,1585647,1585655-1585656,1585661,1585665-1585666,1585669-1585670,1585673,1585680,1585719,1585763,1585770,1585896,1585904,1585907,1585940,1585949,1585951,1585956,1585962-1585963,1586287,1586320,1586364,1586372,1586655,1586836,1587130,1587224,1587399,1587408,1587472,1587485,1587488,1587538,1587580,1587807,1588033,1588042,1588046,1588066,1588201,1589025,1589101,1589137,1589141,1589263,1589440,1589442,1589484,1589488,1589661,1589664,1589682,1589708,1589741,1589748,1589789,1589794,1589850,1589864,1590628,1590660,1590684,1590697,1590701,1590980,1590988,1591101,1591226,1591229,1591293,1591314,1591317,1591362,1591374,1591381,1591438,1591467,1591552,1591704,1591713,1591715,1591723,1591874,1592487,1592512,1592658,1592665,1592677,1592742,1592744,1592787,1592809,1592955,1593036,1593048,1593061,1593133,1593210-1593211,1593231
 ,1593245,1593250,1593294,1593304,1593317,1593342,1593554,1594158-1594164,1594166-1594167,1594169,1594237,1594800,1594808,1594835,1594888,1595147,1595457,1595856,1596241,1596474,1596534,1596844,1597569,1597795,1597854,1597860,1598292,1598302,1598352,1598369,1598595,1598631,1598696,1598732,1598797-1598798,1599299,1599332,1599416,1599434,1599671,1600088,1600935,1601309,1601388,1601578,1601649,1601676,1601757,1601768,1601814,1601833,1601838,1601853,1601878,1601888,1601922,1602156,1602170,1602174,1602179,1602183,1602201,1602207,1602227,1602256,1602261,1602342,1602796-1602797,1602800,1602809,1602853,1602872,1602914,1603155,1603307,1603401,1603441,1603748,1604166,1605030,1605036,1605038,1605292,1605447,1605526,1605670,1605725,1605831,1605852,1606077,1606079,1606087,1606638,1606641,1606644,1606708,1606711,1607031-1607032,1607077,1607127,1607141,1607152,1607185,1607196,1607331,1607362,1607366,1607392,1607526,1607557,1607664,1607737,1608560,1608731,1608783,1609064,1609081,1609165,1609214,1609
 488,1610489,1610592,1610603,1610634,1610658,1610664,1611021,1611041,1611270,1611275,1611277,1611313,1611332,1611584,1612560,1612825,1612993,1613018,1613041,1614265,1614272,1614344-1614345,1614384-1614385,1614397,1614405-1614406,1614574,1614591,1614593,1614596,1614604,1614689,1614807,1614835,1614891,1615417-1615418,1616182,1616236,1616463,1616719,1617417,1617451,1617463,1617711,1618158,1618613,1618624,1618709,1619222,1619411,1619695,1619800,1619808,1619815,1619823-1619824,1620512,1620581,1620585,1620634,1620898,1620905,1621115,1621123-1621124,1621168,1621192,1621201,1621706,1621962,1622197,1622201,1622207,1622250,1622479,1623364,1623766,1623827,1623949,1623969,1623973,1624216,1624317,1624551,1624559,1624973,1624993-1624994,1625025,1625036,1625158,1625224,1625237,1625299,1625348,1625620,1625916,1625962-1625963,1626021,1626053,1626163,1626168,1626175,1626191,1626265,1626770,1627047,1627052,1627228,1627346,1627470,1627473,1627479,1627503,1627586,1627590,1627715,1627731,1628180,1628198,1
 628262,1628447,1628608,1629688,1629840,1629917,1630055-1630057,1630156,1630299,1630338,1630773,1631283-1631284,1631333-1631334,1631617-1631619,1631630,1631699,1631704,1631711,1631967-1631969,1631986,1631990,1631999,1632002-1632003,1632017,1632258,1632264,1632270,1632293,1632303,1632592,1632605,1633315,1633559-1633560,1633562,1633567,1633571,1633598,1633608,1633641,1633687,1633697,1633768,1633783,1634505,1634513,1634774,1634779,1634781,1634792,1634803,1634814,1634816,1634838,1634841,1634852,1634864,1634896,1634898,1635044-1635045,1635060,1635077,1635089,1635102,1635108,1635218,1635387,1635435,1635518,1635563,1635586,1636336,1636348,1636505,1636585,1636799,1637368,1637382,1637413,1637651,1637815,1638779-1638783,1639260,1639577,1639622,1639963,1639966,1639973,1640134,1640143,1640555-1640556,1640694-1640695,1640715,1640722-1640723,1640728,1640863-1640872,1641340,1641350,1641352,1641541,1641596-1641599,1641601,1641662,1641671,1641695,1641771,1641802,1641811,1641950,1642031,1642056,164211
 9,1642285,1642648,1642667,1642954,1642959,1643111,1643178,1643186,1643204,1643287,1643767,1643774,1643982,1644016,1644106,1644366,1644383,1644397-1644398,1644407,1644479,1644547,1644552,1644554,1644588,1644645,1644650,1644654,1644689,1644750,1645421,1645424,1645459,1645585,1645611,1645637,1645646,1645660-1645663,1645888,1645901,1645948,1645966,1645970-1645971,1646014,1646164,1646174,1646684,1649743,1649803,1650015,1650239,1650529,1650797,1651323,1651382,1651643,1651652,1651730,1651988-1651989,1651996,1652024,1652035,1652058-1652059,1652075,1652127,1652158,1652467,1652965,1652971,1653207,1653446,1653463,1653484,1653572,1653579,1653591,1653804,1653809,1653848-1653850,1653882,1654116,1654743,1654756,1654778,1655049,1655054-1655055,1655086,1655237,1655248,1655996,1656027,1656394,1656400,1656425,1656427,1656453,1656628,1657804,1658470,1659483,1659527,1659550,1659578,1659765,1660154-1660155,1660383,1660409,1660426,1660676,1660870,1660872,1660897,1660903,1661069,1661122,1661146,1661158,166
 1226,1661630,1661643,1661645,1662313-1662315,1662323,1662450,1663241,1663275,1663288,1663448,1663565,1663666,1663705,1663730,1664038,1664184,1664228-1664229,1664231
+/jackrabbit/oak/trunk:1584578,1584602,1584614,1584616,1584709,1584781,1584937,1585297,1585304-1585305,1585420,1585424,1585427,1585448,1585465,1585468,1585486,1585497,1585509,1585647,1585655-1585656,1585661,1585665-1585666,1585669-1585670,1585673,1585680,1585719,1585763,1585770,1585896,1585904,1585907,1585940,1585949,1585951,1585956,1585962-1585963,1586287,1586320,1586364,1586372,1586655,1586836,1587130,1587224,1587399,1587408,1587472,1587485,1587488,1587538,1587580,1587807,1588033,1588042,1588046,1588066,1588201,1589025,1589101,1589137,1589141,1589263,1589440,1589442,1589484,1589488,1589661,1589664,1589682,1589708,1589741,1589748,1589789,1589794,1589850,1589864,1590628,1590660,1590684,1590697,1590701,1590980,1590988,1591101,1591226,1591229,1591293,1591314,1591317,1591362,1591374,1591381,1591438,1591467,1591552,1591704,1591713,1591715,1591723,1591874,1592487,1592512,1592658,1592665,1592677,1592742,1592744,1592787,1592809,1592955,1593036,1593048,1593061,1593133,1593210-1593211,1593231
 ,1593245,1593250,1593294,1593304,1593317,1593342,1593554,1594158-1594164,1594166-1594167,1594169,1594237,1594800,1594808,1594835,1594888,1595147,1595457,1595856,1596241,1596474,1596534,1596844,1597569,1597795,1597854,1597860,1598292,1598302,1598352,1598369,1598595,1598631,1598696,1598732,1598797-1598798,1599299,1599332,1599416,1599434,1599671,1600088,1600935,1601309,1601388,1601578,1601649,1601676,1601757,1601768,1601814,1601833,1601838,1601853,1601878,1601888,1601922,1602156,1602170,1602174,1602179,1602183,1602201,1602207,1602227,1602256,1602261,1602342,1602796-1602797,1602800,1602809,1602853,1602872,1602914,1603155,1603307,1603401,1603441,1603748,1604166,1605030,1605036,1605038,1605292,1605447,1605526,1605670,1605725,1605831,1605852,1606077,1606079,1606087,1606638,1606641,1606644,1606708,1606711,1607031-1607032,1607077,1607127,1607141,1607152,1607185,1607196,1607331,1607362,1607366,1607392,1607526,1607557,1607664,1607737,1608560,1608731,1608783,1609064,1609081,1609165,1609214,1609
 488,1610489,1610592,1610603,1610634,1610658,1610664,1611021,1611041,1611270,1611275,1611277,1611313,1611332,1611584,1612560,1612825,1612993,1613018,1613041,1614265,1614272,1614344-1614345,1614384-1614385,1614397,1614405-1614406,1614574,1614591,1614593,1614596,1614604,1614689,1614807,1614835,1614891,1615417-1615418,1616182,1616236,1616463,1616719,1617417,1617451,1617463,1617711,1618158,1618613,1618624,1618709,1619222,1619411,1619695,1619800,1619808,1619815,1619823-1619824,1620512,1620581,1620585,1620634,1620898,1620905,1621115,1621123-1621124,1621168,1621192,1621201,1621706,1621962,1622197,1622201,1622207,1622250,1622479,1623364,1623766,1623827,1623949,1623969,1623973,1624216,1624317,1624551,1624559,1624973,1624993-1624994,1625025,1625036,1625158,1625224,1625237,1625299,1625348,1625620,1625916,1625962-1625963,1626021,1626053,1626163,1626168,1626175,1626191,1626265,1626770,1627047,1627052,1627228,1627346,1627470,1627473,1627479,1627503,1627586,1627590,1627715,1627731,1628180,1628198,1
 628262,1628447,1628608,1629688,1629840,1629917,1630055-1630057,1630156,1630299,1630338,1630773,1631283-1631284,1631333-1631334,1631617-1631619,1631630,1631699,1631704,1631711,1631967-1631969,1631986,1631990,1631999,1632002-1632003,1632017,1632258,1632264,1632270,1632293,1632303,1632592,1632605,1633315,1633559-1633560,1633562,1633567,1633571,1633598,1633608,1633641,1633687,1633697,1633768,1633783,1634505,1634513,1634774,1634779,1634781,1634792,1634803,1634814,1634816,1634838,1634841,1634852,1634864,1634896,1634898,1635044-1635045,1635060,1635077,1635089,1635102,1635108,1635218,1635387,1635435,1635518,1635563,1635586,1636336,1636348,1636505,1636585,1636799,1637368,1637382,1637413,1637651,1637815,1638779-1638783,1639260,1639577,1639622,1639963,1639966,1639973,1640134,1640143,1640555-1640556,1640694-1640695,1640715,1640722-1640723,1640728,1640863-1640872,1641340,1641350,1641352,1641541,1641596-1641599,1641601,1641662,1641671,1641695,1641771,1641802,1641811,1641950,1642031,1642056,164211
 9,1642285,1642648,1642667,1642954,1642959,1643111,1643178,1643186,1643204,1643287,1643767,1643774,1643982,1644016,1644106,1644366,1644383,1644397-1644398,1644407,1644479,1644547,1644552,1644554,1644588,1644645,1644650,1644654,1644689,1644750,1645421,1645424,1645459,1645585,1645611,1645637,1645646,1645660-1645663,1645888,1645901,1645948,1645966,1645970-1645971,1646014,1646164,1646174,1646684,1649743,1649803,1650015,1650239,1650529,1650797,1651323,1651382,1651643,1651652,1651730,1651988-1651989,1651996,1652024,1652035,1652058-1652059,1652075,1652127,1652158,1652467,1652965,1652971,1653207,1653446,1653463,1653484,1653572,1653579,1653591,1653804,1653809,1653848-1653850,1653882,1654116,1654743,1654756,1654778,1655049,1655054-1655055,1655086,1655237,1655248,1655996,1656027,1656394,1656400,1656425,1656427,1656453,1656628,1657804,1658470,1659483,1659527,1659550,1659578,1659765,1660154-1660155,1660383,1660409,1660426,1660676,1660870,1660872,1660897,1660903,1661069,1661122,1661146,1661158,166
 1226,1661630,1661643,1661645,1662313-1662315,1662323,1662450,1663241,1663275,1663288,1663448,1663666,1663730,1664038,1664184,1664228-1664229,1664231
 /jackrabbit/trunk:1345480

Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/JsopDiff.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/JsopDiff.java?rev=1664332&r1=1664331&r2=1664332&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/JsopDiff.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/JsopDiff.java Thu Mar  5 12:38:35 2015
@@ -61,7 +61,7 @@ public class JsopDiff implements NodeSta
         this(blobs, "/");
     }
 
-    public JsopDiff(String path, int depth) {
+    JsopDiff(String path, int depth) {
         this(new JsopBuilder(), new BlobSerializer(), path, depth);
     }
 

Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeState.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeState.java?rev=1664332&r1=1664331&r2=1664332&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeState.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeState.java Thu Mar  5 12:38:35 2015
@@ -57,6 +57,7 @@ import com.google.common.collect.Iterato
 import com.google.common.collect.Maps;
 
 import static com.google.common.base.Preconditions.checkNotNull;
+import static org.apache.jackrabbit.oak.plugins.document.util.Utils.unshareString;
 import static org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.EMPTY_NODE;
 
 /**
@@ -264,7 +265,8 @@ public class DocumentNodeState extends A
                         // use DocumentNodeStore compare
                         final long start = perfLogger.start();
                         try {
-                            return store.compare(this, mBase, diff);
+                            return dispatch(store.diffChildren(this, mBase),
+                                    mBase, diff);
                         } finally {
                             perfLogger
                                     .end(start,
@@ -409,6 +411,64 @@ public class DocumentNodeState extends A
                 || this.lastRevision.equals(other.lastRevision);
     }
 
+    private boolean dispatch(@Nonnull String jsonDiff,
+                             @Nonnull DocumentNodeState base,
+                             @Nonnull NodeStateDiff diff) {
+        if (!AbstractNodeState.comparePropertiesAgainstBaseState(this, base, diff)) {
+            return false;
+        }
+        if (jsonDiff.trim().isEmpty()) {
+            return true;
+        }
+        JsopTokenizer t = new JsopTokenizer(jsonDiff);
+        boolean continueComparison = true;
+        while (continueComparison) {
+            int r = t.read();
+            if (r == JsopReader.END) {
+                break;
+            }
+            switch (r) {
+                case '+': {
+                    String name = unshareString(t.readString());
+                    t.read(':');
+                    t.read('{');
+                    while (t.read() != '}') {
+                        // skip properties
+                    }
+                    continueComparison = diff.childNodeAdded(name, getChildNode(name));
+                    break;
+                }
+                case '-': {
+                    String name = unshareString(t.readString());
+                    continueComparison = diff.childNodeDeleted(name, base.getChildNode(name));
+                    break;
+                }
+                case '^': {
+                    String name = unshareString(t.readString());
+                    t.read(':');
+                    if (t.matches('{')) {
+                        t.read('}');
+                        continueComparison = diff.childNodeChanged(name,
+                                base.getChildNode(name), getChildNode(name));
+                    } else if (t.matches('[')) {
+                        // ignore multi valued property
+                        while (t.read() != ']') {
+                            // skip values
+                        }
+                    } else {
+                        // ignore single valued property
+                        t.read();
+                    }
+                    break;
+                }
+                default:
+                    throw new IllegalArgumentException("jsonDiff: illegal token '"
+                            + t.getToken() + "' at pos: " + t.getLastPos() + ' ' + jsonDiff);
+            }
+        }
+        return continueComparison;
+    }
+
     /**
      * Returns up to {@code limit} child node entries, starting after the given
      * {@code name}.

Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java?rev=1664332&r1=1664331&r2=1664332&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java Thu Mar  5 12:38:35 2015
@@ -21,13 +21,11 @@ import static com.google.common.base.Pre
 import static com.google.common.collect.Iterables.toArray;
 import static com.google.common.collect.Iterables.transform;
 import static org.apache.jackrabbit.oak.api.CommitFailedException.MERGE;
-import static org.apache.jackrabbit.oak.commons.PathUtils.concat;
 import static org.apache.jackrabbit.oak.plugins.document.Collection.NODES;
 import static org.apache.jackrabbit.oak.plugins.document.DocumentMK.FAST_DIFF;
 import static org.apache.jackrabbit.oak.plugins.document.DocumentMK.MANY_CHILDREN_THRESHOLD;
 import static org.apache.jackrabbit.oak.plugins.document.UpdateOp.Key;
 import static org.apache.jackrabbit.oak.plugins.document.UpdateOp.Operation;
-import static org.apache.jackrabbit.oak.plugins.document.util.Utils.unshareString;
 
 import java.io.Closeable;
 import java.io.IOException;
@@ -94,10 +92,8 @@ import org.apache.jackrabbit.oak.spi.com
 import org.apache.jackrabbit.oak.spi.commit.CommitHook;
 import org.apache.jackrabbit.oak.spi.commit.CommitInfo;
 import org.apache.jackrabbit.oak.spi.commit.Observer;
-import org.apache.jackrabbit.oak.spi.state.AbstractNodeState;
 import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
 import org.apache.jackrabbit.oak.spi.state.NodeState;
-import org.apache.jackrabbit.oak.spi.state.NodeStateDiff;
 import org.apache.jackrabbit.oak.spi.state.NodeStore;
 import org.apache.jackrabbit.oak.stats.Clock;
 import org.apache.jackrabbit.oak.util.PerfLogger;
@@ -836,7 +832,7 @@ public final class DocumentNodeStore
         String to = Utils.getKeyUpperLimit(checkNotNull(path));
         String from;
         if (name != null) {
-            from = Utils.getIdFromPath(concat(path, name));
+            from = Utils.getIdFromPath(PathUtils.concat(path, name));
         } else {
             from = Utils.getKeyLowerLimit(path);
         }
@@ -861,7 +857,7 @@ public final class DocumentNodeStore
         } else if (c.childNames.size() < limit && !c.isComplete) {
             // fetch more and update cache
             String lastName = c.childNames.get(c.childNames.size() - 1);
-            String lastPath = concat(path, lastName);
+            String lastPath = PathUtils.concat(path, lastName);
             from = Utils.getIdFromPath(lastPath);
             int remainingLimit = limit - c.childNames.size();
             List<NodeDocument> docs = store.query(Collection.NODES,
@@ -878,7 +874,7 @@ public final class DocumentNodeStore
         Iterable<NodeDocument> it = transform(c.childNames, new Function<String, NodeDocument>() {
             @Override
             public NodeDocument apply(String name) {
-                String p = concat(path, name);
+                String p = PathUtils.concat(path, name);
                 NodeDocument doc = store.find(Collection.NODES, Utils.getIdFromPath(p));
                 if (doc == null) {
                     docChildrenCache.invalidateAll();
@@ -919,7 +915,7 @@ public final class DocumentNodeStore
                 new Function<String, DocumentNodeState>() {
             @Override
             public DocumentNodeState apply(String input) {
-                String p = concat(parent.getPath(), input);
+                String p = PathUtils.concat(parent.getPath(), input);
                 DocumentNodeState result = getNode(p, readRevision);
                 if (result == null) {
                     throw new DocumentStoreException("DocumentNodeState is null for revision " + readRevision + " of " + p
@@ -1251,42 +1247,26 @@ public final class DocumentNodeStore
 
     /**
      * Compares the given {@code node} against the {@code base} state and
-     * reports the differences to the {@link NodeStateDiff}.
+     * reports the differences on the children as a json diff string. This
+     * method does not report any property changes between the two nodes.
      *
      * @param node the node to compare.
      * @param base the base node to compare against.
-     * @param diff handler of node state differences
-     * @return {@code true} if the full diff was performed, or
-     *         {@code false} if it was aborted as requested by the handler
-     *         (see the {@link NodeStateDiff} contract for more details)
-     */
-    boolean compare(@Nonnull final DocumentNodeState node,
-                    @Nonnull final DocumentNodeState base,
-                    @Nonnull final NodeStateDiff diff) {
-        if (!AbstractNodeState.comparePropertiesAgainstBaseState(node, base, diff)) {
-            return false;
-        }
+     * @return the json diff.
+     */
+    String diffChildren(@Nonnull final DocumentNodeState node,
+                        @Nonnull final DocumentNodeState base) {
         if (node.hasNoChildren() && base.hasNoChildren()) {
-            return true;
-        }
-        boolean useReadRevision = true;
-        // first lookup with read revisions of nodes and without loader
-        String jsop = diffCache.getChanges(base.getRevision(), 
-                node.getRevision(), node.getPath(), null);
-        if (jsop == null) {
-            useReadRevision = false;
-            // fall back to last revisions with loader, this
-            // guarantees we get a diff
-            jsop = diffCache.getChanges(base.getLastRevision(),
-                    node.getLastRevision(), node.getPath(),
-                    new DiffCache.Loader() {
-                        @Override
-                        public String call() {
-                            return diffImpl(base, node);
-                        }
-                    });
+            return "";
         }
-        return dispatch(jsop, node, base, diff, useReadRevision);
+        return diffCache.getChanges(base.getLastRevision(),
+                node.getLastRevision(), node.getPath(),
+                new DiffCache.Loader() {
+                    @Override
+                    public String call() {
+                        return diffImpl(base, node);
+                    }
+                });
     }
 
     String diff(@Nonnull final String fromRevisionId,
@@ -1327,13 +1307,13 @@ public final class DocumentNodeStore
                     t.read(':');
                     t.read('{');
                     t.read('}');
-                    writer.tag((char) r).key(concat(path, name));
+                    writer.tag((char) r).key(PathUtils.concat(path, name));
                     writer.object().endObject().newline();
                     break;
                 }
                 case '-': {
                     String name = t.readString();
-                    writer.tag('-').value(concat(path, name));
+                    writer.tag('-').value(PathUtils.concat(path, name));
                     writer.newline();
                 }
             }
@@ -1725,69 +1705,6 @@ public final class DocumentNodeStore
 
     //-----------------------------< internal >---------------------------------
 
-    private boolean dispatch(@Nonnull String jsonDiff,
-                             @Nonnull DocumentNodeState node,
-                             @Nonnull DocumentNodeState base,
-                             @Nonnull NodeStateDiff diff,
-                             boolean useReadRevision) {
-        if (jsonDiff.trim().isEmpty()) {
-            return true;
-        }
-        Revision nodeRev = useReadRevision ? node.getRevision() : node.getLastRevision();
-        Revision baseRev = useReadRevision ? base.getRevision() : base.getLastRevision();
-        JsopTokenizer t = new JsopTokenizer(jsonDiff);
-        boolean continueComparison = true;
-        while (continueComparison) {
-            int r = t.read();
-            if (r == JsopReader.END) {
-                break;
-            }
-            switch (r) {
-                case '+': {
-                    String name = unshareString(t.readString());
-                    t.read(':');
-                    t.read('{');
-                    while (t.read() != '}') {
-                        // skip properties
-                    }
-                    NodeState child = getNode(concat(node.getPath(), name), nodeRev);
-                    continueComparison = diff.childNodeAdded(name, child);
-                    break;
-                }
-                case '-': {
-                    String name = unshareString(t.readString());
-                    NodeState child = getNode(concat(base.getPath(), name), baseRev);
-                    continueComparison = diff.childNodeDeleted(name, child);
-                    break;
-                }
-                case '^': {
-                    String name = unshareString(t.readString());
-                    t.read(':');
-                    if (t.matches('{')) {
-                        t.read('}');
-                        NodeState nodeChild = getNode(concat(node.getPath(), name), nodeRev);
-                        NodeState baseChild = getNode(concat(base.getPath(), name), baseRev);
-                        continueComparison = diff.childNodeChanged(
-                                name, baseChild, nodeChild);
-                    } else if (t.matches('[')) {
-                        // ignore multi valued property
-                        while (t.read() != ']') {
-                            // skip values
-                        }
-                    } else {
-                        // ignore single valued property
-                        t.read();
-                    }
-                    break;
-                }
-                default:
-                    throw new IllegalArgumentException("jsonDiff: illegal token '"
-                            + t.getToken() + "' at pos: " + t.getLastPos() + ' ' + jsonDiff);
-            }
-        }
-        return continueComparison;
-    }
-
     /**
      * Creates a tracker for the given commit revision.
      *
@@ -1811,7 +1728,7 @@ public final class DocumentNodeStore
             // changed or removed properties
             PropertyState toValue = to.getProperty(name);
             if (!fromValue.equals(toValue)) {
-                w.tag('^').key(concat(from.getPath(), name));
+                w.tag('^').key(PathUtils.concat(from.getPath(), name));
                 if (toValue == null) {
                     w.value(null);
                 } else {
@@ -1822,7 +1739,7 @@ public final class DocumentNodeStore
         for (String name : to.getPropertyNames()) {
             // added properties
             if (!from.hasProperty(name)) {
-                w.tag('^').key(concat(from.getPath(), name))
+                w.tag('^').key(PathUtils.concat(from.getPath(), name))
                         .encodedValue(to.getPropertyAsString(name)).newline();
             }
         }
@@ -1957,7 +1874,7 @@ public final class DocumentNodeStore
             if (!childrenSet.contains(n)) {
                 w.tag('-').value(n).newline();
             } else {
-                String path = concat(parentPath, n);
+                String path = PathUtils.concat(parentPath, n);
                 DocumentNodeState n1 = getNode(path, fromRev);
                 DocumentNodeState n2 = getNode(path, toRev);
                 // this is not fully correct:
@@ -2020,7 +1937,7 @@ public final class DocumentNodeStore
         }
         for (DocumentNodeState child : getChildNodes(source, null, Integer.MAX_VALUE)) {
             String childName = PathUtils.getName(child.getPath());
-            String destChildPath = concat(targetPath, childName);
+            String destChildPath = PathUtils.concat(targetPath, childName);
             moveOrCopyNode(move, child, destChildPath, commit);
         }
     }

Modified: jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/AbstractMongoConnectionTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/AbstractMongoConnectionTest.java?rev=1664332&r1=1664331&r2=1664332&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/AbstractMongoConnectionTest.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/AbstractMongoConnectionTest.java Thu Mar  5 12:38:35 2015
@@ -43,7 +43,6 @@ public abstract class AbstractMongoConne
     public void setUpConnection() throws Exception {
         mongoConnection = MongoUtils.getConnection();
         MongoUtils.dropCollections(mongoConnection.getDB());
-        Revision.setClock(getTestClock());
         mk = new DocumentMK.Builder().clock(getTestClock()).setMongoDB(mongoConnection.getDB()).open();
     }
 
@@ -59,7 +58,6 @@ public abstract class AbstractMongoConne
         mongoConnection = MongoUtils.getConnection();
         MongoUtils.dropCollections(mongoConnection.getDB());
         mongoConnection.close();
-        Revision.resetClockToDefault();
     }
 
     @Override

Modified: jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreIT.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreIT.java?rev=1664332&r1=1664331&r2=1664332&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreIT.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreIT.java Thu Mar  5 12:38:35 2015
@@ -18,7 +18,6 @@ package org.apache.jackrabbit.oak.plugin
 
 import java.util.Collections;
 
-import org.apache.jackrabbit.oak.kernel.JsopDiff;
 import org.apache.jackrabbit.oak.plugins.document.util.TimingDocumentStoreWrapper;
 import org.apache.jackrabbit.oak.plugins.document.util.Utils;
 import org.apache.jackrabbit.oak.spi.commit.CommitInfo;
@@ -111,10 +110,9 @@ public class DocumentNodeStoreIT extends
         ns1.runBackgroundOperations();
         ns2.runBackgroundOperations();
 
-        JsopDiff diff = new JsopDiff("", 0);
-        ns1.compare(root2, root1, diff);
+        String diff = ns1.diffChildren(root2, root1);
         // must report /node as changed
-        assertEquals("^\"node\":{}", diff.toString());
+        assertEquals("^\"node\":{}", diff.trim());
 
         ns1.dispose();
         ns2.dispose();