Fix Jackson max length limitation issue for npm package metadata

addons/pkg-npm/jaxrs/src/main/java/org/commonjava/indy/pkg/npm/jaxrs/NPMContentAccessHandler.java

@@ -15,6 +15,7 @@
  */
 package org.commonjava.indy.pkg.npm.jaxrs;
 
+import com.fasterxml.jackson.core.StreamReadConstraints;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.commons.codec.binary.Base64;
@@ -475,6 +476,10 @@ private List<Transfer> generateNPMContentsFromTransfer( final Transfer transfer,
         try
         {
             ObjectMapper mapper = new ObjectMapper();
+            // Enlarge the max length for a single string value inside of the json
+            mapper.getFactory()
+                  .setStreamReadConstraints(
+                          StreamReadConstraints.builder().maxStringLength( Integer.MAX_VALUE ).build() );
             JsonNode root = mapper.readTree( transfer.openInputStream( true ) );
 
             String versionPath = null;

addons/pkg-npm/model-java/src/test/java/org/commonjava/indy/pkg/npm/model/PackageMetadataTest.java

@@ -15,10 +15,16 @@
  */
 package org.commonjava.indy.pkg.npm.model;
 
+import com.fasterxml.jackson.core.StreamReadConstraints;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.commons.io.IOUtils;
 import org.commonjava.indy.model.core.io.IndyObjectMapper;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.io.InputStream;
+
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertTrue;
@@ -72,4 +78,20 @@ public void ignoreCouchDBJsonDataTest() throws Exception
         assertThat( jsonResult.contains( "_id" ), equalTo( false ) );
         assertThat( jsonResult.contains( "_attachments" ), equalTo( false ) );
     }
+
+    @Test
+    public void testLargeJson() throws IOException
+    {
+        ObjectMapper mapper = new ObjectMapper();
+        // read ~40MB json file
+        try (InputStream input = this.getClass().getClassLoader().getResourceAsStream( "large-stream.json"))
+        {
+            mapper.getFactory()
+                  .setStreamReadConstraints(
+                          StreamReadConstraints.builder().maxStringLength( Integer.MAX_VALUE ).build() );
+            JsonNode root = mapper.readTree( input );
+            JsonNode idnode = root.path( "_id" );
+            assertThat( idnode.asText(), equalTo( "@janus-idp/backstage-plugin-orchestrator" ));
+        }
+    }
 }