Extract status from PatchSetAttribute

This change requires

  https://gerrit-review.googlesource.com/#/c/47041/

but is required for ChangeAbandonedEvents to detect whether or not the
abandoned change was a draft change or not.

Change-Id: I27c0fbe4516e7304650dc0d539e147fc1f9c49a7

hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractor.java

diff --git a/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractor.java b/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractor.java
index b1a47be..4ef5e41 100644
--- a/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractor.java
+++ b/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractor.java
@@ -85,6 +85,8 @@
         Integer.toString(patchSetAttribute.sizeDeletions)));
     properties.add(propertyFactory.create("insertions",
         Integer.toString(patchSetAttribute.sizeInsertions)));
+    properties.add(propertyFactory.create("is-draft",
+        Boolean.toString(patchSetAttribute.isDraft)));
     properties.addAll(extractFrom(patchSetAttribute.uploader,
         "uploader"));
     properties.addAll(extractFrom(patchSetAttribute.author,

hooks-its/src/main/resources/Documentation/config.md

diff --git a/hooks-its/src/main/resources/Documentation/config.md b/hooks-its/src/main/resources/Documentation/config.md
index afc74f9..165e191 100644
--- a/hooks-its/src/main/resources/Documentation/config.md
+++ b/hooks-its/src/main/resources/Documentation/config.md
@@ -383,6 +383,8 @@
   number of lines deleted by the patch set.
 'insertions'::
   number of lines inserted by the patch set.
+'is-draft'::
+  'true', if the patch set is a draft patch set, 'false' otherwise.
 'parents'::
   A list of git commit hashes that are parents to the patch set.
 'patch-set-number'::

hooks-its/src/test/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractorTest.java

diff --git a/hooks-its/src/test/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractorTest.java b/hooks-its/src/test/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractorTest.java
index 80f90e3..0125bc0 100644
--- a/hooks-its/src/test/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractorTest.java
+++ b/hooks-its/src/test/java/com/googlesource/gerrit/plugins/hooks/util/PropertyAttributeExtractorTest.java
@@ -267,6 +267,7 @@
     patchSetAttribute.parents = Lists.newArrayList("parent1", "parent2");
     patchSetAttribute.sizeDeletions = 7;
     patchSetAttribute.sizeInsertions = 12;
+    patchSetAttribute.isDraft = true;
     patchSetAttribute.uploader = uploader;
     patchSetAttribute.author = author;
 
@@ -299,6 +300,10 @@
     expect(propertyFactory.create("insertions", "12"))
         .andReturn(propertyInsertions);
 
+    Property propertyIsDraft= createMock(Property.class);
+    expect(propertyFactory.create("is-draft", "true"))
+        .andReturn(propertyIsDraft);
+
     Property propertyEmail1 = createMock(Property.class);
     expect(propertyFactory.create("uploader-email", "testEmail1"))
         .andReturn(propertyEmail1);
@@ -338,6 +343,7 @@
     expected.add(propertyParents);
     expected.add(propertyDeletions);
     expected.add(propertyInsertions);
+    expected.add(propertyIsDraft);
     expected.add(propertyEmail1);
     expected.add(propertyName1);
     expected.add(propertyUsername1);