[libvirt] [libvirt-java] [PATCH 09/15] Remove processError method from StoragePool class
Claudio Bley
cbley at av-test.de
Thu Jan 9 10:08:04 UTC 2014
Wrap any fallible libvirt function in a call to
ErrorHandler.processError(..).
Adjust the doc comment for storageVolLookupByName to indicate that
it might return null.
Also correct wrong javadoc comments stating that methods would return
a value in case an error occurs.
---
src/main/java/org/libvirt/StoragePool.java | 95 ++++++++++--------------------
1 file changed, 30 insertions(+), 65 deletions(-)
diff --git a/src/main/java/org/libvirt/StoragePool.java b/src/main/java/org/libvirt/StoragePool.java
index 2d59f68..bb608e3 100644
--- a/src/main/java/org/libvirt/StoragePool.java
+++ b/src/main/java/org/libvirt/StoragePool.java
@@ -5,6 +5,7 @@ import org.libvirt.jna.StoragePoolPointer;
import org.libvirt.jna.StorageVolPointer;
import org.libvirt.jna.virStoragePoolInfo;
import static org.libvirt.Library.libvirt;
+import static org.libvirt.ErrorHandler.processError;
import com.sun.jna.Native;
import com.sun.jna.ptr.IntByReference;
@@ -72,8 +73,7 @@ public class StoragePool {
* future flags, use 0 for now
*/
public void build(int flags) throws LibvirtException {
- libvirt.virStoragePoolBuild(VSPP, flags);
- processError();
+ processError(libvirt.virStoragePoolBuild(VSPP, flags));
}
/**
@@ -83,8 +83,7 @@ public class StoragePool {
* future flags, use 0 for now
*/
public void create(int flags) throws LibvirtException {
- libvirt.virStoragePoolCreate(VSPP, flags);
- processError();
+ processError(libvirt.virStoragePoolCreate(VSPP, flags));
}
/**
@@ -95,8 +94,7 @@ public class StoragePool {
* flags for obliteration process
*/
public void delete(int flags) throws LibvirtException {
- libvirt.virStoragePoolDelete(VSPP, flags);
- processError();
+ processError(libvirt.virStoragePoolDelete(VSPP, flags));
}
/**
@@ -106,8 +104,7 @@ public class StoragePool {
* This does not free the associated virStoragePoolPtr object.
*/
public void destroy() throws LibvirtException {
- libvirt.virStoragePoolDestroy(VSPP);
- processError();
+ processError(libvirt.virStoragePoolDestroy(VSPP));
}
@Override
@@ -120,13 +117,12 @@ public class StoragePool {
* not change the state of the pool on the host.
*
* @throws LibvirtException
- * @return number of references left (>= 0) for success, -1 for failure.
+ * @return number of references left (>= 0)
*/
public int free() throws LibvirtException {
int success = 0;
if (VSPP != null) {
- success = libvirt.virStoragePoolFree(VSPP);
- processError();
+ success = processError(libvirt.virStoragePoolFree(VSPP));
VSPP = null;
}
return success;
@@ -141,8 +137,7 @@ public class StoragePool {
*/
public boolean getAutostart() throws LibvirtException {
IntByReference autoStart = new IntByReference();
- libvirt.virStoragePoolGetAutostart(VSPP, autoStart);
- processError();
+ processError(libvirt.virStoragePoolGetAutostart(VSPP, autoStart));
return autoStart.getValue() != 0 ? true : false;
}
@@ -164,8 +159,7 @@ public class StoragePool {
*/
public StoragePoolInfo getInfo() throws LibvirtException {
virStoragePoolInfo vInfo = new virStoragePoolInfo();
- libvirt.virStoragePoolGetInfo(VSPP, vInfo);
- processError();
+ processError(libvirt.virStoragePoolGetInfo(VSPP, vInfo));
return new StoragePoolInfo(vInfo);
}
@@ -176,9 +170,7 @@ public class StoragePool {
* @throws LibvirtException
*/
public String getName() throws LibvirtException {
- String returnValue = libvirt.virStoragePoolGetName(VSPP);
- processError();
- return returnValue;
+ return processError(libvirt.virStoragePoolGetName(VSPP));
}
/**
@@ -189,13 +181,8 @@ public class StoragePool {
*/
public int[] getUUID() throws LibvirtException {
byte[] bytes = new byte[Libvirt.VIR_UUID_BUFLEN];
- int success = libvirt.virStoragePoolGetUUID(VSPP, bytes);
- processError();
- int[] returnValue = new int[0];
- if (success == 0) {
- returnValue = Connect.convertUUIDBytes(bytes);
- }
- return returnValue;
+ processError(libvirt.virStoragePoolGetUUID(VSPP, bytes));
+ return Connect.convertUUIDBytes(bytes);
}
/**
@@ -206,13 +193,8 @@ public class StoragePool {
*/
public String getUUIDString() throws LibvirtException {
byte[] bytes = new byte[Libvirt.VIR_UUID_STRING_BUFLEN];
- int success = libvirt.virStoragePoolGetUUIDString(VSPP, bytes);
- processError();
- String returnValue = null;
- if (success == 0) {
- returnValue = Native.toString(bytes);
- }
- return returnValue;
+ processError(libvirt.virStoragePoolGetUUIDString(VSPP, bytes));
+ return Native.toString(bytes);
}
/**
@@ -224,9 +206,7 @@ public class StoragePool {
* @return a XML document -java @throws LibvirtException
*/
public String getXMLDesc(int flags) throws LibvirtException {
- String returnValue = libvirt.virStoragePoolGetXMLDesc(VSPP, flags);
- processError();
- return returnValue;
+ return processError(libvirt.virStoragePoolGetXMLDesc(VSPP, flags));
}
/**
@@ -235,13 +215,11 @@ public class StoragePool {
* @see <a
* href="http://www.libvirt.org/html/libvirt-libvirt.html#virStoragePoolIsActive">Libvirt
* Documentation</a>
- * @return 1 if running, 0 if inactive, -1 on error
+ * @return 1 if running, 0 if inactive
* @throws LibvirtException
*/
public int isActive() throws LibvirtException {
- int returnValue = libvirt.virStoragePoolIsActive(VSPP);
- processError();
- return returnValue;
+ return processError(libvirt.virStoragePoolIsActive(VSPP));
}
/**
@@ -251,13 +229,11 @@ public class StoragePool {
* @see <a
* href="http://www.libvirt.org/html/libvirt-libvirt.html#virStoragePoolIsPersistent">Libvirt
* Documentation</a>
- * @return 1 if persistent, 0 if transient, -1 on error
+ * @return 1 if persistent, 0 if transient
* @throws LibvirtException
*/
public int isPersistent() throws LibvirtException {
- int returnValue = libvirt.virStoragePoolIsPersistent(VSPP);
- processError();
- return returnValue;
+ return processError(libvirt.virStoragePoolIsPersistent(VSPP));
}
/**
@@ -270,8 +246,7 @@ public class StoragePool {
public String[] listVolumes() throws LibvirtException {
int num = numOfVolumes();
String[] returnValue = new String[num];
- libvirt.virStoragePoolListVolumes(VSPP, returnValue, num);
- processError();
+ processError(libvirt.virStoragePoolListVolumes(VSPP, returnValue, num));
return returnValue;
}
@@ -282,13 +257,7 @@ public class StoragePool {
* @throws LibvirtException
*/
public int numOfVolumes() throws LibvirtException {
- int returnValue = libvirt.virStoragePoolNumOfVolumes(VSPP);
- processError();
- return returnValue;
- }
-
- protected void processError() throws LibvirtException {
- virConnect.processError();
+ return processError(libvirt.virStoragePoolNumOfVolumes(VSPP));
}
/**
@@ -301,8 +270,7 @@ public class StoragePool {
* @throws LibvirtException
*/
public void refresh(int flags) throws LibvirtException {
- libvirt.virStoragePoolRefresh(VSPP, flags);
- processError();
+ processError(libvirt.virStoragePoolRefresh(VSPP, flags));
}
/**
@@ -328,8 +296,7 @@ public class StoragePool {
* @throws LibvirtException
*/
public StorageVol storageVolCreateXML(String xmlDesc, int flags) throws LibvirtException {
- StorageVolPointer sPtr = libvirt.virStorageVolCreateXML(VSPP, xmlDesc, flags);
- processError();
+ StorageVolPointer sPtr = processError(libvirt.virStorageVolCreateXML(VSPP, xmlDesc, flags));
return new StorageVol(virConnect, sPtr);
}
@@ -338,13 +305,12 @@ public class StoragePool {
* as input. Information for the new volume (name, perms) are passed via a
* typical volume XML description.
*
- * @return The storage volume, or {@code null} on error.
+ * @return The storage volume
* @throws LibvirtException
*/
public StorageVol storageVolCreateXMLFrom(String xmlDesc, StorageVol cloneVolume, int flags)
throws LibvirtException {
- StorageVolPointer sPtr = libvirt.virStorageVolCreateXMLFrom(VSPP, xmlDesc, cloneVolume.VSVP, flags);
- processError();
+ StorageVolPointer sPtr = processError(libvirt.virStorageVolCreateXMLFrom(VSPP, xmlDesc, cloneVolume.VSVP, flags));
return new StorageVol(virConnect, sPtr);
}
@@ -354,13 +320,13 @@ public class StoragePool {
*
* @param name
* name of storage volume
- * @return The StorageVol object found
+ * @return a StorageVol object, or {@code null} if not found.
* @throws LibvirtException
*/
public StorageVol storageVolLookupByName(String name) throws LibvirtException {
- StorageVolPointer sPtr = libvirt.virStorageVolLookupByName(VSPP, name);
- processError();
- return new StorageVol(virConnect, sPtr);
+ StorageVolPointer sPtr = processError(libvirt.virStorageVolLookupByName(VSPP, name));
+
+ return (sPtr == null) ? null : new StorageVol(virConnect, sPtr);
}
/**
@@ -369,8 +335,7 @@ public class StoragePool {
* @throws LibvirtException
*/
public void undefine() throws LibvirtException {
- libvirt.virStoragePoolUndefine(VSPP);
- processError();
+ processError(libvirt.virStoragePoolUndefine(VSPP));
}
}
--
1.8.5.2.msysgit.0
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