Add PatchContent to store the uncompressed content of a patch

This allows us to precompute patches from Git and write them
into the database for efficient access.

Signed-off-by: Shawn O. Pearce <sop@google.com>

webapp/src/com/google/gerrit/client/reviewdb/Patch.java

@@ -115,6 +115,9 @@ public final class Patch {
   @Column
   protected char patchType;
 
+  @Column(notNull = false)
+  protected PatchContent.Key contentSha1;
+
   /** Number of published comments on this patch. */
   @Column
   protected int nbrComments;
@@ -163,6 +166,14 @@ public final class Patch {
     return key.fileName;
   }
 
+  public PatchContent.Key getContent() {
+    return contentSha1;
+  }
+
+  public void setContent(final PatchContent.Key k) {
+    contentSha1 = k;
+  }
+
   public String getSourceFileName() {
     return sourceFileName;
   }

webapp/src/com/google/gerrit/client/reviewdb/PatchContent.java

@@ -0,0 +1,69 @@
+// Copyright 2008 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.client.reviewdb;
+
+import com.google.gwtorm.client.Column;
+
+/** Content of a single patch file */
+public final class PatchContent {
+  public static class Key implements
+      com.google.gwtorm.client.Key<com.google.gwtorm.client.Key<?>> {
+    @Column(length = 40)
+    protected String sha1;
+
+    protected Key() {
+    }
+
+    public Key(final String ps) {
+      sha1 = ps;
+    }
+
+    @Override
+    public int hashCode() {
+      return sha1.hashCode();
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+      return o instanceof Key && sha1.equals(((Key) o).sha1);
+    }
+
+    public com.google.gwtorm.client.Key<?> getParentKey() {
+      return null;
+    }
+  }
+
+  @Column(name = Column.NONE)
+  protected PatchContent.Key key;
+
+  @Column(length = Integer.MAX_VALUE)
+  protected String content;
+
+  protected PatchContent() {
+  }
+
+  public PatchContent(final PatchContent.Key k, final String c) {
+    key = k;
+    content = c;
+  }
+
+  public PatchContent.Key getKey() {
+    return key;
+  }
+
+  public String getContent() {
+    return content;
+  }
+}

webapp/src/com/google/gerrit/client/reviewdb/PatchContentAccess.java

@@ -0,0 +1,25 @@
+// Copyright 2008 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.client.reviewdb;
+
+import com.google.gwtorm.client.Access;
+import com.google.gwtorm.client.OrmException;
+import com.google.gwtorm.client.PrimaryKey;
+
+public interface PatchContentAccess extends
+    Access<PatchContent, PatchContent.Key> {
+  @PrimaryKey("key")
+  PatchContent get(PatchContent.Key key) throws OrmException;
+}

webapp/src/com/google/gerrit/client/reviewdb/ReviewDb.java

@@ -83,6 +83,9 @@ public interface ReviewDb extends Schema {
   @Relation
   PatchAccess patches();
 
+  @Relation
+  PatchContentAccess patchContents();
+
   @Relation
   PatchLineCommentAccess patchComments();