bulk: handle absolute/relative paths in uniform fashion

Motivation:
-----------
Recent change(s) that massaged user input target paths and
stored absolute paths on bulk backend lead to ambiguity between
user provided and dcache resolved paths and also resulted in inability
to use full paths (i.e. only relative paths are supported). At
Fermilab we need to use both - relative and absolute paths

Modification:
-------------
Revert all recent changes that appended prefix to user
supplied paths, stored the result and then stripped the
prefix so that only "original" paths are exposed to the user.
Instead, like before, store user supplied paths but carry
over request prefix which is computed from user root and
door root. When calling PnfsManager using paths the full
paths of the targets are reassembled using the prefix

Result:
------
Restored ability to use absolute paths when using REST API.

Issue: #7693
Patch: https://rb.dcache.org/r/14355/
Target: trunk
Request: 10.2, 10.1, 10.0, 9.2
Require-book: no
Require-notes: yes
Acked-by: Lea Morschel, Tigran Mkrtchyan

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/BulkActivity.java

@@ -114,7 +114,7 @@ protected BulkActivity(String name, TargetType targetType) {
         retryPolicy = DEFAULT_RETRY_POLICY;
     }
 
-    public void cancel(BulkRequestTarget target) {
+    public void cancel(String prefix, BulkRequestTarget target) {
         target.cancel();
     }
 
@@ -173,11 +173,12 @@ public void setDescriptors(Set<BulkActivityArgumentDescriptor> descriptors) {
      *
      * @param rid  of the request.
      * @param tid  of the target.
+     * @param prefix target prefix
      * @param path of the target on which to perform the activity.
      * @return future result of the activity.
      * @throws BulkServiceException
      */
-    public abstract ListenableFuture<R> perform(String rid, long tid, FsPath path, FileAttributes attributes)
+    public abstract ListenableFuture<R> perform(String rid, long tid, String prefix, FsPath path, FileAttributes attributes)
             throws BulkServiceException;
 
     /**

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/delete/DeleteActivity.java

@@ -89,9 +89,10 @@ public DeleteActivity(String name, TargetType targetType) {
     }
 
     @Override
-    public ListenableFuture<PnfsDeleteEntryMessage> perform(String rid, long tid, FsPath path,
+    public ListenableFuture<PnfsDeleteEntryMessage> perform(String rid, long tid, String prefix, FsPath path,
           FileAttributes attributes) {
-        PnfsDeleteEntryMessage msg = new PnfsDeleteEntryMessage(path.toString());
+        FsPath absolutePath = BulkRequestTarget.computeFsPath(prefix, path.toString());
+        PnfsDeleteEntryMessage msg = new PnfsDeleteEntryMessage(absolutePath.toString());
         msg.setSubject(subject);
         if (attributes != null && attributes.getFileType() == FileType.DIR && skipDirs) {
             msg.setSucceeded();

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/log/LogTargetActivity.java

@@ -89,7 +89,7 @@ protected LogTargetActivity(String name, TargetType targetType) {
     }
 
     @Override
-    public ListenableFuture<BulkRequestTarget> perform(String ruid, long tid, FsPath path,
+    public ListenableFuture<BulkRequestTarget> perform(String ruid, long tid, String prefix, FsPath path,
           FileAttributes attributes) {
         long now = System.currentTimeMillis();
         BulkRequestTarget t = BulkRequestTargetBuilder.builder(null).activity(this.getName()).id(tid)

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/pin/PinActivity.java

@@ -91,26 +91,27 @@ public PinActivity(String name, TargetType targetType) {
         super(name, targetType);
     }
 
-    public void cancel(BulkRequestTarget target) {
-        super.cancel(target);
+    public void cancel(String prefix, BulkRequestTarget target) {
+        super.cancel(prefix, target);
         try {
-            pinManager.send(unpinMessage(id, target));
+            pinManager.send(unpinMessage(id, prefix, target));
         } catch (CacheException e) {
-            target.setErrorObject(new BulkServiceException("unable to fetch pnfsid of target in "
+                        target.setErrorObject(new BulkServiceException("unable to fetch pnfsid of target in "
                   + "order to cancel pinning.", e));
         }
     }
 
     @Override
-    public ListenableFuture<Message> perform(String rid, long tid, FsPath target,
+    public ListenableFuture<Message> perform(String rid, long tid, String prefix, FsPath path,
           FileAttributes attributes) {
         if (id == null) {
             id = rid;
         }
 
         try {
             if (attributes == null) {
-                attributes = getAttributes(target);
+                FsPath absolutePath = BulkRequestTarget.computeFsPath(prefix, path.toString());
+                attributes = getAttributes(absolutePath);
             }
 
             checkPinnable(attributes);

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/pin/PinManagerActivity.java

@@ -61,6 +61,7 @@ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 
 import static com.google.common.util.concurrent.Uninterruptibles.getUninterruptibly;
 import static diskCacheV111.util.CacheException.INVALID_ARGS;
+import static org.dcache.services.bulk.util.BulkRequestTarget.computeFsPath;
 import static org.dcache.services.bulk.util.BulkRequestTarget.State.SKIPPED;
 
 import com.google.common.util.concurrent.Futures;
@@ -130,11 +131,12 @@ protected FileAttributes getAttributes(FsPath path) throws CacheException {
         return pnfsHandler.getFileAttributes(path, MINIMALLY_REQUIRED_ATTRIBUTES);
     }
 
-    protected PinManagerUnpinMessage unpinMessage(String id, BulkRequestTarget target)
+    protected PinManagerUnpinMessage unpinMessage(String id, String prefix, BulkRequestTarget target)
           throws CacheException {
         PnfsId pnfsId = target.getPnfsId();
         if (pnfsId == null) {
-            pnfsId = getAttributes(target.getPath()).getPnfsId();
+            FsPath absolutePath = computeFsPath(prefix, target.getPath().toString());
+            pnfsId = getAttributes(absolutePath).getPnfsId();
         }
         return unpinMessage(id, pnfsId);
     }

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/pin/ReleaseActivity.java

@@ -60,6 +60,7 @@ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 package org.dcache.services.bulk.activity.plugin.pin;
 
 import static org.dcache.services.bulk.activity.plugin.pin.ReleaseActivityProvider.REQUEST_ID;
+import static org.dcache.services.bulk.util.BulkRequestTarget.computeFsPath;
 
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -77,11 +78,12 @@ public ReleaseActivity(String name, TargetType targetType) {
     }
 
     @Override
-    public ListenableFuture<Message> perform(String rid, long tid, FsPath target,
+    public ListenableFuture<Message> perform(String rid, long tid, String prefix, FsPath path,
           FileAttributes attributes) {
         try {
             if (attributes == null) {
-                attributes = getAttributes(target);
+                FsPath absolutePath = computeFsPath(prefix, path.toString());
+                attributes = getAttributes(absolutePath);
             }
             return pinManager.send(unpinMessage(id, attributes.getPnfsId()));
         } catch (CacheException e) {

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/pin/StageActivity.java

@@ -102,32 +102,34 @@ public StageActivity(String name, TargetType targetType) {
         super(name, targetType);
     }
 
-    public void cancel(BulkRequestTarget target) {
-        super.cancel(target);
+    public void cancel(String prefix, BulkRequestTarget target) {
+        super.cancel(prefix, target);
         try {
-            pinManager.send(unpinMessage(id, target));
+            pinManager.send(unpinMessage(id, prefix, target));
         } catch (CacheException e) {
             target.setErrorObject(new BulkServiceException("unable to fetch pnfsid of target in "
-                  + "order to cancel staging.", e));
+                                                           + "order to cancel staging.", e));
         }
     }
 
     @Override
-    public ListenableFuture<Message> perform(String rid, long tid, FsPath target,
+    public ListenableFuture<Message> perform(String rid, long tid, String prefix, FsPath path,
           FileAttributes attributes) {
         id = rid;
 
         try {
             /*
              *  refetch the attributes because RP is not stored in the bulk database.
              */
-            attributes = getAttributes(target);
+
+            FsPath absolutePath = BulkRequestTarget.computeFsPath(prefix, path.toString());
+            attributes = getAttributes(absolutePath);
 
             checkStageable(attributes);
 
             PinManagerPinMessage message
                   = new PinManagerPinMessage(attributes, getProtocolInfo(), id,
-                  getLifetimeInMillis(target));
+                  getLifetimeInMillis(path));
             message.setSubject(subject);
 
             Optional<ListenableFuture<Message>> skipOption = skipIfOnline(attributes, message);

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/pin/UnpinActivity.java

@@ -60,6 +60,7 @@ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 package org.dcache.services.bulk.activity.plugin.pin;
 
 import static org.dcache.services.bulk.activity.plugin.pin.UnpinActivityProvider.UNPIN_REQUEST_ID;
+import static org.dcache.services.bulk.util.BulkRequestTarget.computeFsPath;
 
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -78,11 +79,12 @@ public UnpinActivity(String name, TargetType targetType) {
     }
 
     @Override
-    public ListenableFuture<Message> perform(String rid, long tid, FsPath target,
+    public ListenableFuture<Message> perform(String rid, long tid, String prefix, FsPath path,
           FileAttributes attributes) {
         try {
             if (attributes == null) {
-                attributes = getAttributes(target);
+                FsPath absolutePath = computeFsPath(prefix, path.toString());
+                attributes = getAttributes(absolutePath);
             }
             return pinManager.send(unpinMessage(id, attributes.getPnfsId()));
         } catch (CacheException e) {

modules/dcache-bulk/src/main/java/org/dcache/services/bulk/activity/plugin/qos/UpdateQoSActivity.java

@@ -112,30 +112,45 @@ public UpdateQoSActivity(String name, TargetType targetType) {
     }
 
     @Override
-    public synchronized void cancel(BulkRequestTarget target) {
+    public synchronized void cancel(String prefix, BulkRequestTarget target) {
         RemoteQoSRequirementsClient client = new RemoteQoSRequirementsClient();
         client.setRequirementsService(qosEngine);
-        PnfsId pnfsId = target.getAttributes().getPnfsId();
+        PnfsId pnfsId = null;
+        if (target.getAttributes() == null) {
+            FsPath absolutePath = BulkRequestTarget.computeFsPath(prefix,
+                                                                  target.getPath().toString());
+            try {
+                pnfsId = pnfsHandler.getFileAttributes(absolutePath.toString(),
+                                                       MINIMALLY_REQUIRED_ATTRIBUTES).getPnfsId();
+            } catch (CacheException e) {
+              LOGGER.error("fileQoSRequirementsModifiedCancelled failed: failed to fetch attributes for {} {}.",
+                           target.getPath().toString(),
+                           e.getMessage());
+            }
+        } else {
+            pnfsId = target.getAttributes().getPnfsId();
+        }
         try {
             client.fileQoSRequirementsModifiedCancelled(pnfsId, subject);
         } catch (QoSException e) {
             LOGGER.error("fileQoSRequirementsModifiedCancelled failed: {}, {}.", pnfsId,
                   e.getMessage());
         }
         responseReceiver.cancel(pnfsId.toString());
-        super.cancel(target);
+        super.cancel(prefix, target);
     }
 
     @Override
     public ListenableFuture<QoSTransitionCompletedMessage> perform(String rid, long tid,
-          FsPath path, FileAttributes attributes) throws BulkServiceException {
+          String prefix, FsPath path, FileAttributes attributes) throws BulkServiceException {
         if (targetQos == null && qosPolicy == null) {
             return Futures.immediateFailedFuture(new IllegalArgumentException("no target qos or policy given."));
         }
 
         if (attributes == null) {
             try {
-                attributes = pnfsHandler.getFileAttributes(path, MINIMALLY_REQUIRED_ATTRIBUTES);
+                FsPath absolutePath = BulkRequestTarget.computeFsPath(prefix, path.toString());
+                attributes = pnfsHandler.getFileAttributes(absolutePath.toString(), MINIMALLY_REQUIRED_ATTRIBUTES);
             } catch (CacheException e) {
                 throw new BulkServiceException("failed to retrieve file attributes", e);
             }
@@ -232,6 +247,3 @@ public void setNamespaceHandler(PnfsHandler pnfsHandler) {
         this.pnfsHandler = pnfsHandler;
     }
 }
-
-
-