Make RestTemplate follow 30x redirects

src/main/java/org/gesis/dda/feeder/ssoar/impl/SpringRestTemplateSsoarRestService.java

@@ -11,6 +11,9 @@ import java.util.Set;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
+import org.apache.http.client.HttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.impl.client.LaxRedirectStrategy;
 import org.gesis.dda.feeder.ssoar.SsoarRestService;
 import org.gesis.dda.feeder.ssoar.domain.Bitstream;
 import org.gesis.dda.feeder.ssoar.domain.Collection;
@@ -32,6 +35,7 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.client.BufferingClientHttpRequestFactory;
 import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
 import org.springframework.http.client.SimpleClientHttpRequestFactory;
 import org.springframework.web.client.RestTemplate;
 
@@ -57,13 +61,20 @@ public class SpringRestTemplateSsoarRestService implements SsoarRestService {
         this.authenticationUser = new User( ingesterProperties.getEmail(), ingesterProperties.getPassword() );
         if (activateDebug) {
             restTemplate = new RestTemplate(  new BufferingClientHttpRequestFactory( new SimpleClientHttpRequestFactory() )  );
-            List<ClientHttpRequestInterceptor> interceptors = new ArrayList<ClientHttpRequestInterceptor>();
+            List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>();
             interceptors.add(new LoggingRequestInterceptor());
             restTemplate.setInterceptors(interceptors);
         }
         else {
             restTemplate = new RestTemplate();
         }
+        final HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
+        final HttpClient httpClient = HttpClientBuilder.create()
+                                                       .setRedirectStrategy(new LaxRedirectStrategy())
+                                                       .build();
+        factory.setHttpClient(httpClient);
+        restTemplate.setRequestFactory(factory);
+        
         
         ImmutableSet.Builder<String> setBuilder = ImmutableSet.builder();
         setBuilder.add("dc.identifier.urn", "dc.identifier.doi", "dc.identifier.url", "dc.identifier.uri", "internal.dda.reference" /*, "dc.identifier.issn", "dc.identifier.isbn", "dc.identifier"*/);

src/main/webapp/.gitignore

+/bower_components/

src/test/java/org/gesis/dda/feeder/ssoar/SsoarRestIntTest.java

@@ -3,12 +3,17 @@ package org.gesis.dda.feeder.ssoar;
 import java.util.Arrays;
 import java.util.List;
 
+import org.apache.http.client.HttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.impl.client.LaxRedirectStrategy;
 import org.gesis.dda.feeder.ssoar.domain.Bitstream;
 import org.gesis.dda.feeder.ssoar.domain.Item;
+import org.junit.Before;
 import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
 import org.springframework.web.client.RestTemplate;
 
 
@@ -16,9 +21,22 @@ public class SsoarRestIntTest {
     private static final Logger log = LoggerFactory.getLogger(SsoarRestIntTest.class);
     private final static String INTEGRATION_SERVER_ENDPOINT = "http://ssoar.svko-dda-test.gesis.intra/rest/";
     
+    private RestTemplate restTemplate;
+    
+    @Before
+    public void before() {
+       //restTemplate = new RestTemplate( new FollowRedirectsClientHttpRequestFactory() );
+        restTemplate = new RestTemplate();
+        final HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
+        final HttpClient httpClient = HttpClientBuilder.create()
+                                                       .setRedirectStrategy(new LaxRedirectStrategy())
+                                                       .build();
+        factory.setHttpClient(httpClient);
+        restTemplate.setRequestFactory(factory);
+    }
+    
     @Test
     public void makeSimpleRestCall() {
-        RestTemplate restTemplate = new RestTemplate();
         Item item = restTemplate.getForObject(INTEGRATION_SERVER_ENDPOINT + "items/39921", Item.class);
         log.info(item.toString());
         log.info("hallo");
@@ -26,9 +44,9 @@ public class SsoarRestIntTest {
     
     @Test
     public void getBitstreamsForItem() {
-        RestTemplate restTemplate = new RestTemplate();
         ResponseEntity<Bitstream[]>  bitstreamsResponse = restTemplate.getForEntity(INTEGRATION_SERVER_ENDPOINT + "items/39921/bitstreams", Bitstream[].class);
         List<Bitstream> bitstreams = Arrays.asList( bitstreamsResponse.getBody() );
         bitstreams.stream().forEach(b -> log.info(b.toString()) );
     }
+    
 }