summaryrefslogtreecommitdiffstats
path: root/core/src/main/java/org/onap/aaf/cadi/util/JsonOutputStream.java
diff options
context:
space:
mode:
Diffstat (limited to 'core/src/main/java/org/onap/aaf/cadi/util/JsonOutputStream.java')
-rw-r--r--core/src/main/java/org/onap/aaf/cadi/util/JsonOutputStream.java90
1 files changed, 90 insertions, 0 deletions
diff --git a/core/src/main/java/org/onap/aaf/cadi/util/JsonOutputStream.java b/core/src/main/java/org/onap/aaf/cadi/util/JsonOutputStream.java
new file mode 100644
index 0000000..546292e
--- /dev/null
+++ b/core/src/main/java/org/onap/aaf/cadi/util/JsonOutputStream.java
@@ -0,0 +1,90 @@
+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aaf
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * ===========================================================================
+ * * 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.
+ * * ============LICENSE_END====================================================
+ * *
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * *
+ ******************************************************************************/
+package org.onap.aaf.cadi.util;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class JsonOutputStream extends OutputStream {
+ private static final byte[] TWO_SPACE = " ".getBytes();
+ private OutputStream os;
+ private boolean closeable;
+ private int indent = 0;
+ private int prev,ret=0;
+
+ public JsonOutputStream(OutputStream os) {
+ // Don't close these, or dire consequences.
+ closeable = !os.equals(System.out) && !os.equals(System.err);
+ this.os = os;
+ }
+
+ @Override
+ public void write(int b) throws IOException {
+ if(ret=='\n') {
+ ret = 0;
+ if(prev!=',' || (b!='{' && b!='[')) {
+ os.write('\n');
+ for(int i=0;i<indent;++i) {
+ os.write(TWO_SPACE);
+ }
+ }
+ }
+ switch(b) {
+ case '{':
+ case '[':
+ ret = '\n';
+ ++indent;
+ break;
+ case '}':
+ case ']':
+ --indent;
+ os.write('\n');
+ for(int i=0;i<indent;++i) {
+ os.write(TWO_SPACE);
+ }
+ break;
+ case ',':
+ ret = '\n';
+ break;
+
+ }
+ os.write(b);
+ prev = b;
+ }
+ public void resetIndent() {
+ indent = 1;
+ }
+
+ @Override
+ public void flush() throws IOException {
+ os.flush();
+ }
+
+ @Override
+ public void close() throws IOException {
+ if(closeable) {
+ os.close();
+ }
+ }
+
+}