Use nio Channels in OpenAPI read

[netconf.git] / restconf / restconf-openapi / src / main / java / org / opendaylight / restconf / openapi / impl / SecuritySchemesStream.java

diff --git a/restconf/restconf-openapi/src/main/java/org/opendaylight/restconf/openapi/impl/SecuritySchemesStream.java b/restconf/restconf-openapi/src/main/java/org/opendaylight/restconf/openapi/impl/SecuritySchemesStream.java
index 73e40c9079e3096fe2667ded75e0c011466d161f..5c7e53b5b2422784290fed65deec78131a23623d 100644 (file)
--- a/restconf/restconf-openapi/src/main/java/org/opendaylight/restconf/openapi/impl/SecuritySchemesStream.java
+++ b/restconf/restconf-openapi/src/main/java/org/opendaylight/restconf/openapi/impl/SecuritySchemesStream.java
@@ -13,6 +13,9 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
 import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import org.opendaylight.restconf.openapi.jaxrs.OpenApiBodyWriter;
@@ -25,6 +28,7 @@ public final class SecuritySchemesStream extends InputStream {
     private final SecuritySchemesEntity securitySchemesEntity;
 
     private Reader reader;
+    private ReadableByteChannel channel;
 
     public SecuritySchemesStream(final OpenApiBodyWriter writer,
             final Map<String, SecuritySchemeObject> securitySchemes) {
@@ -44,7 +48,11 @@ public final class SecuritySchemesStream extends InputStream {
 
     @Override
     public int read(final byte[] array, final int off, final int len) throws IOException {
-        return super.read(array, off, len);
+        if (channel == null) {
+            final var stream = new ByteArrayInputStream(writeNextEntity(securitySchemesEntity));
+            channel = Channels.newChannel(stream);
+        }
+        return channel.read(ByteBuffer.wrap(array, off, len));
     }
 
     private byte[] writeNextEntity(final OpenApiEntity next) throws IOException {