Add support for using SearchResultHandler with send.

core/src/main/java/org/ldaptive/handler/AbstractSearchResultHandler.java

@@ -0,0 +1,39 @@
+/* See LICENSE for licensing and NOTICE for copyright. */
+package org.ldaptive.handler;
+
+/**
+ * Base class for search result handlers.
+ *
+ * @author  Middleware Services
+ */
+public abstract class AbstractSearchResultHandler implements SearchResultHandler
+{
+
+  /** Handler usage. */
+  private final Usage usage;
+
+
+  /**
+   * Creates a new abstract search result handler.
+   *
+   * @param  u  handler usage
+   */
+  public AbstractSearchResultHandler(final Usage u)
+  {
+    usage = u;
+  }
+
+
+  @Override
+  public Usage getUsage()
+  {
+    return usage;
+  }
+
+
+  @Override
+  public String toString()
+  {
+    return getClass().getName() + "@" + hashCode() + "::" + "usage=" + usage;
+  }
+}

core/src/main/java/org/ldaptive/handler/FreezeResultHandler.java

@@ -9,13 +9,31 @@
  *
  * @author  Middleware Services
  */
-public class FreezeResultHandler implements SearchResultHandler
+public class FreezeResultHandler extends AbstractSearchResultHandler
 {
 
   /** hash code seed. */
   private static final int HASH_CODE_SEED = 859;
 
 
+  /** Default constructor. */
+  public FreezeResultHandler()
+  {
+    this(Usage.SYNC);
+  }
+
+
+  /**
+   * Creates a new freeze result handler.
+   *
+   * @param  u  handler usage
+   */
+  public FreezeResultHandler(final Usage u)
+  {
+    super(u);
+  }
+
+
   @Override
   public SearchResponse apply(final SearchResponse response)
   {
@@ -30,20 +48,24 @@ public boolean equals(final Object o)
     if (o == this) {
       return true;
     }
-    return o instanceof FreezeResultHandler;
+    if (o instanceof FreezeResultHandler) {
+      final FreezeResultHandler v = (FreezeResultHandler) o;
+      return LdapUtils.areEqual(getUsage(), v.getUsage());
+    }
+    return false;
   }
 
 
   @Override
   public int hashCode()
   {
-    return LdapUtils.computeHashCode(HASH_CODE_SEED);
+    return LdapUtils.computeHashCode(HASH_CODE_SEED, getUsage());
   }
 
 
   @Override
   public String toString()
   {
-    return "[" + getClass().getName() + "@" + hashCode() + "]";
+    return "[" + super.toString() + "]";
   }
 }

core/src/main/java/org/ldaptive/handler/MergeResultHandler.java

@@ -12,13 +12,31 @@
  *
  * @author  Miguel Martinez de Espronceda
  */
-public class MergeResultHandler implements SearchResultHandler
+public class MergeResultHandler extends AbstractSearchResultHandler
 {
 
   /** hash code seed. */
   private static final int HASH_CODE_SEED = 857;
 
 
+  /** Default constructor. */
+  public MergeResultHandler()
+  {
+    this(Usage.SYNC);
+  }
+
+
+  /**
+   * Creates a new merge result handler.
+   *
+   * @param  u  handler usage
+   */
+  public MergeResultHandler(final Usage u)
+  {
+    super(u);
+  }
+
+
   @Override
   public SearchResponse apply(final SearchResponse searchResponse)
   {
@@ -82,20 +100,24 @@ public boolean equals(final Object o)
     if (o == this) {
       return true;
     }
-    return o instanceof MergeResultHandler;
+    if (o instanceof MergeResultHandler) {
+      final MergeResultHandler v = (MergeResultHandler) o;
+      return LdapUtils.areEqual(getUsage(), v.getUsage());
+    }
+    return false;
   }
 
 
   @Override
   public int hashCode()
   {
-    return LdapUtils.computeHashCode(HASH_CODE_SEED);
+    return LdapUtils.computeHashCode(HASH_CODE_SEED, getUsage());
   }
 
 
   @Override
   public String toString()
   {
-    return "[" + getClass().getName() + "@" + hashCode() + "]";
+    return "[" + super.toString() + "]";
   }
 }

core/src/main/java/org/ldaptive/handler/SearchResultHandler.java

@@ -9,4 +9,27 @@
  *
  * @author  Middleware Services
  */
-public interface SearchResultHandler extends Function<SearchResponse, SearchResponse> {}
+public interface SearchResultHandler extends Function<SearchResponse, SearchResponse>
+{
+
+
+  /** Intended usage of the handler. */
+  enum Usage {
+    /** Use this handler with {@link org.ldaptive.SearchOperation#send()}*/
+    ASYNC,
+
+    /** Use this handler with {@link org.ldaptive.SearchOperation#execute()}*/
+    SYNC
+  }
+
+
+  /**
+   * Returns the usage for this handler.
+   *
+   * @return  handler usage
+   */
+  default Usage getUsage()
+  {
+    return Usage.SYNC;
+  }
+}

core/src/main/java/org/ldaptive/handler/SortResultHandler.java

@@ -9,13 +9,31 @@
  *
  * @author  Middleware Services
  */
-public class SortResultHandler implements SearchResultHandler
+public class SortResultHandler extends AbstractSearchResultHandler
 {
 
   /** hash code seed. */
   private static final int HASH_CODE_SEED = 853;
 
 
+  /** Default constructor. */
+  public SortResultHandler()
+  {
+    this(Usage.SYNC);
+  }
+
+
+  /**
+   * Creates a new sort result handler.
+   *
+   * @param  u  handler usage
+   */
+  public SortResultHandler(final Usage u)
+  {
+    super(u);
+  }
+
+
   @Override
   public SearchResponse apply(final SearchResponse response)
   {
@@ -29,20 +47,24 @@ public boolean equals(final Object o)
     if (o == this) {
       return true;
     }
-    return o instanceof SortResultHandler;
+    if (o instanceof SortResultHandler) {
+      final SortResultHandler v = (SortResultHandler) o;
+      return LdapUtils.areEqual(getUsage(), v.getUsage());
+    }
+    return false;
   }
 
 
   @Override
   public int hashCode()
   {
-    return LdapUtils.computeHashCode(HASH_CODE_SEED);
+    return LdapUtils.computeHashCode(HASH_CODE_SEED, getUsage());
   }
 
 
   @Override
   public String toString()
   {
-    return "[" + getClass().getName() + "@" + hashCode() + "]";
+    return "[" + super.toString() + "]";
   }
 }

core/src/main/java/org/ldaptive/transport/DefaultSearchOperationHandle.java

@@ -108,25 +108,27 @@ public SearchResponse await()
     SearchResponse done = super.await();
     if (onSearchResult != null) {
       for (SearchResultHandler func : onSearchResult) {
-        final SearchResponse handlerResponse;
-        try {
-          handlerResponse = func.apply(done);
-        } catch (Exception ex) {
-          if (ex.getCause() instanceof LdapException) {
-            throw (LdapException) ex.getCause();
+        if (func.getUsage() == SearchResultHandler.Usage.SYNC) {
+          final SearchResponse handlerResponse;
+          try {
+            handlerResponse = func.apply(done);
+          } catch (Exception ex) {
+            if (ex.getCause() instanceof LdapException) {
+              throw (LdapException) ex.getCause();
+            }
+            throw new IllegalStateException("Search result handler " + func + " threw exception", ex);
           }
-          throw new IllegalStateException("Search result handler " + func + " threw exception", ex);
-        }
-        if (handlerResponse == null) {
-          throw new IllegalStateException("Search result handler " + func + " returned null result");
-        } else if (!handlerResponse.equalsResult(done) &&
-          // FollowSearchReferralHandler can be used as a referral handler and a search result handler for convenience
-          // allow it to modify the search response
-          !(ResultCode.REFERRAL == done.getResultCode() && FollowSearchReferralHandler.class.equals(func.getClass())))
-        {
-          throw new IllegalStateException("Cannot modify search result instance with handler " + func);
+          if (handlerResponse == null) {
+            throw new IllegalStateException("Search result handler " + func + " returned null result");
+          } else if (!handlerResponse.equalsResult(done) &&
+            // FollowSearchReferralHandler can be used as a referral handler and a search result handler for convenience
+            // allow it to modify the search response
+            !(ResultCode.REFERRAL == done.getResultCode() && FollowSearchReferralHandler.class.equals(func.getClass())))
+          {
+            throw new IllegalStateException("Cannot modify search result instance with handler " + func);
+          }
+          done = handlerResponse;
         }
-        done = handlerResponse;
       }
     }
     super.evaluateThrowCondition(done);
@@ -324,11 +326,33 @@ public void result(final SearchResponse r)
     processResult(r);
     r.addEntries(result.getEntries());
     r.addReferences(result.getReferences());
+    SearchResponse done = r;
     if (SORT_RESULTS) {
-      finalizeResult(SearchResponse.sort(r));
-    } else {
-      finalizeResult(r);
+      done = SearchResponse.sort(r);
+    }
+    if (onSearchResult != null) {
+      for (SearchResultHandler func : onSearchResult) {
+        if (func.getUsage() == SearchResultHandler.Usage.ASYNC) {
+          final SearchResponse handlerResponse;
+          try {
+            handlerResponse = func.apply(done);
+            if (handlerResponse == null) {
+              throw new IllegalStateException("Search result handler " + func + " returned null result");
+            } else if (!handlerResponse.equalsResult(done)) {
+              throw new IllegalStateException("Cannot modify search result instance with handler " + func);
+            }
+            done = handlerResponse;
+          } catch (Exception ex) {
+            if (ex.getCause() instanceof LdapException) {
+              exception((LdapException) ex.getCause());
+            } else {
+              logger.warn("Search result function {} in handle {} threw an exception", func, this, ex);
+            }
+          }
+        }
+      }
     }
+    finalizeResult(done);
   }
 
 

integration/src/test/java/org/ldaptive/SearchOperationTest.java

@@ -9,6 +9,9 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Collectors;
 import org.ldaptive.ad.control.ForceUpdateControl;
 import org.ldaptive.ad.control.GetStatsControl;
@@ -42,6 +45,7 @@
 import org.ldaptive.handler.NoOpEntryHandler;
 import org.ldaptive.handler.RecursiveResultHandler;
 import org.ldaptive.handler.ResultPredicate;
+import org.ldaptive.handler.SearchResultHandler;
 import org.ldaptive.referral.DefaultReferralConnectionFactory;
 import org.ldaptive.referral.FollowSearchReferralHandler;
 import org.ldaptive.referral.FollowSearchResultReferenceHandler;
@@ -1091,6 +1095,33 @@ public void mergeDuplicateSearch(
     final SearchResponse result = search.execute(sr);
     // ignore the case of member and contactPerson; some directories return those in mixed case
     LdapEntryAssert.assertThat(result.getEntry()).isSame(convertLdifToEntry(expected), "member", "contactPerson");
+
+    // perform search again using send operation
+    final CountDownLatch latch = new CountDownLatch(1);
+    final AtomicReference<SearchResponse> ref = new AtomicReference<>();
+    search.setSearchResultHandlers(
+      new MergeResultHandler(SearchResultHandler.Usage.ASYNC),
+      new SearchResultHandler() {
+        @Override
+        public SearchResponse apply(final SearchResponse sr)
+        {
+          ref.set(sr);
+          latch.countDown();
+          return sr;
+        }
+        @Override
+        public Usage getUsage()
+        {
+          return Usage.ASYNC;
+        }
+      });
+
+    search.send(sr);
+    if (!latch.await(Duration.ofSeconds(5).toMillis(), TimeUnit.MILLISECONDS)) {
+      fail("No results received");
+    }
+    // ignore the case of member and contactPerson; some directories return those in mixed case
+    LdapEntryAssert.assertThat(ref.get().getEntry()).isSame(convertLdifToEntry(expected), "member", "contactPerson");
   }