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The following commit(s) were added to refs/heads/master by this push:
     new b872793  JENA-1782: Better SHACL parse tree printing
     new 2438583  Merge pull request #633 from afs/shacl-print
b872793 is described below

commit b872793dd687f3708f73f32bc2cc27b0dc52932f
Author: Andy Seaborne <[email protected]>
AuthorDate: Tue Nov 19 21:25:21 2019 +0000

    JENA-1782: Better SHACL parse tree printing
---
 .../shacl/engine/constraint/ConstraintOp1.java     | 42 ++++++++++++++++++++
 .../shacl/engine/constraint/ConstraintOpN.java     | 46 ++++++++++++++++++++++
 .../apache/jena/shacl/engine/constraint/ShAnd.java |  8 ++--
 .../jena/shacl/engine/constraint/ShNode.java       |  9 ++---
 .../apache/jena/shacl/engine/constraint/ShNot.java |  7 ++--
 .../apache/jena/shacl/engine/constraint/ShOr.java  |  8 ++--
 .../jena/shacl/engine/constraint/ShXone.java       |  8 ++--
 .../java/org/apache/jena/shacl/parser/Shape.java   | 11 ++----
 8 files changed, 108 insertions(+), 31 deletions(-)

diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ConstraintOp1.java
 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ConstraintOp1.java
new file mode 100644
index 0000000..bafc7e8
--- /dev/null
+++ 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ConstraintOp1.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.jena.shacl.engine.constraint;
+
+import org.apache.jena.atlas.io.IndentedWriter;
+import org.apache.jena.shacl.parser.Shape;
+
+/** A constraint that operates on one other constraints */
+public abstract class ConstraintOp1 extends ConstraintOp {
+    
+    protected  final Shape other;
+    
+    protected ConstraintOp1(Shape subShape) {
+        other = subShape;
+    }
+    
+    @Override
+    public void print(IndentedWriter out) {
+        out.print(toString());
+        out.ensureStartOfLine();
+        out.incIndent();
+        other.print(out);
+        out.decIndent();
+        out.ensureStartOfLine();
+    }
+}
diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ConstraintOpN.java
 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ConstraintOpN.java
new file mode 100644
index 0000000..48c25da
--- /dev/null
+++ 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ConstraintOpN.java
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.jena.shacl.engine.constraint;
+
+import java.util.List;
+
+import org.apache.jena.atlas.io.IndentedWriter;
+import org.apache.jena.shacl.parser.Shape;
+
+/** A constraint that combines N other constraints */
+public abstract class ConstraintOpN extends ConstraintOp {
+    
+    protected  final List<Shape> others;
+    
+    protected ConstraintOpN(List<Shape> subShapes) {
+        others = subShapes;
+    }
+    
+    @Override
+    public void print(IndentedWriter out) {
+        out.print(toString());
+        out.ensureStartOfLine();
+        out.incIndent();
+        for ( Shape sub: others ) {
+            sub.print(out);
+            out.ensureStartOfLine();
+        }
+        out.decIndent();
+    }
+}
diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShAnd.java 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShAnd.java
index 85c7047..6b9c66a 100644
--- 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShAnd.java
+++ 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShAnd.java
@@ -31,12 +31,10 @@ import org.apache.jena.shacl.validation.ValidationProc;
 import org.apache.jena.shacl.vocabulary.SHACL;
 
 /** sh:and */
-public class ShAnd extends ConstraintOp {
-
-    private List<Shape> others;
+public class ShAnd extends ConstraintOpN {
 
     public ShAnd(List<Shape> others) {
-        this.others = others;
+        super(others);
     }
 
     @Override
@@ -60,6 +58,6 @@ public class ShAnd extends ConstraintOp {
 
     @Override
     public String toString() {
-        return "And"+others;
+        return "And";
     }
 }
\ No newline at end of file
diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNode.java 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNode.java
index 40d2d45..3a6d45d 100644
--- 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNode.java
+++ 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNode.java
@@ -29,11 +29,10 @@ import org.apache.jena.shacl.validation.ValidationProc;
 import org.apache.jena.shacl.vocabulary.SHACL;
 
 /** sh:node */
-public class ShNode extends ConstraintOp {
-    private Shape other;
-
+public class ShNode extends ConstraintOp1 {
+    
     public ShNode(Shape other) {
-        this.other = other;
+        super(other);
     }
 
     @Override
@@ -54,6 +53,6 @@ public class ShNode extends ConstraintOp {
 
     @Override
     public String toString() {
-        return "Node["+other+"]";
+        return "Node";
     }
 }
\ No newline at end of file
diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNot.java 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNot.java
index 7795040..86cc327 100644
--- 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNot.java
+++ 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShNot.java
@@ -29,11 +29,10 @@ import org.apache.jena.shacl.validation.ValidationProc;
 import org.apache.jena.shacl.vocabulary.SHACL;
 
 /** sh:not */
-public class ShNot extends ConstraintOp {
-    private Shape other;
+public class ShNot extends ConstraintOp1 {
 
     public ShNot(Shape other) {
-        this.other = other;
+        super(other);
     }
 
     @Override
@@ -54,6 +53,6 @@ public class ShNot extends ConstraintOp {
 
     @Override
     public String toString() {
-        return "Not["+other+"]";
+        return "Not";
     }
 }
\ No newline at end of file
diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShOr.java 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShOr.java
index 144f1d1..7d6259a 100644
--- a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShOr.java
+++ b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShOr.java
@@ -31,12 +31,10 @@ import org.apache.jena.shacl.validation.ValidationProc;
 import org.apache.jena.shacl.vocabulary.SHACL;
 
 /** sh:or */
-public class ShOr extends ConstraintOp {
-
-    private List<Shape> others;
+public class ShOr extends ConstraintOpN {
 
     public ShOr(List<Shape> others) {
-        this.others = others;
+        super(others);
     }
 
     @Override
@@ -59,6 +57,6 @@ public class ShOr extends ConstraintOp {
 
     @Override
     public String toString() {
-        return "Or"+others;
+        return "Or";
     }
 }
\ No newline at end of file
diff --git 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShXone.java 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShXone.java
index 8680560..11af8f9 100644
--- 
a/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShXone.java
+++ 
b/jena-shacl/src/main/java/org/apache/jena/shacl/engine/constraint/ShXone.java
@@ -31,12 +31,10 @@ import org.apache.jena.shacl.validation.ValidationProc;
 import org.apache.jena.shacl.vocabulary.SHACL;
 
 /** sh:xone */
-public class ShXone extends ConstraintOp {
-
-    private List<Shape> others;
+public class ShXone extends ConstraintOpN {
 
     public ShXone(List<Shape> others) {
-        this.others = others;
+        super(others);
     }
 
     @Override
@@ -65,6 +63,6 @@ public class ShXone extends ConstraintOp {
 
     @Override
     public String toString() {
-        return "Or"+others;
+        return "Xone";
     }
 }
\ No newline at end of file
diff --git a/jena-shacl/src/main/java/org/apache/jena/shacl/parser/Shape.java 
b/jena-shacl/src/main/java/org/apache/jena/shacl/parser/Shape.java
index e1b5925..03fd149 100644
--- a/jena-shacl/src/main/java/org/apache/jena/shacl/parser/Shape.java
+++ b/jena-shacl/src/main/java/org/apache/jena/shacl/parser/Shape.java
@@ -95,12 +95,8 @@ public abstract class Shape {
         if ( !(out instanceof BufferedOutputStream) )
             out = new BufferedOutputStream(out, 128 * 1024);
         IndentedWriter w = new IndentedWriter(out);
-        try {
-            print(w);
-        }
-        finally {
-            // w.flush();
-        }
+        try { print(w); }
+        finally { w.flush(); }
     }
 
     protected abstract void printHeader(IndentedWriter out);
@@ -119,7 +115,8 @@ public abstract class Shape {
         try {
             for ( Constraint c : constraints ) {
                 c.print(out);
-                out.println();
+                if ( ! out.atLineStart() )
+                    out.println();
             }
             for ( PropertyShape ps : getPropertyShapes() ) {
                 ps.print(out);

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