Minor utility method add.
Project: http://git-wip-us.apache.org/repos/asf/incubator-ignite/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-ignite/commit/42e94854 Tree: http://git-wip-us.apache.org/repos/asf/incubator-ignite/tree/42e94854 Diff: http://git-wip-us.apache.org/repos/asf/incubator-ignite/diff/42e94854 Branch: refs/heads/ignite-141 Commit: 42e94854f1faa3c87a18c90b57f7064eb07cc26e Parents: 6423cf0 Author: vozerov-gridgain <voze...@gridgain.com> Authored: Thu Mar 5 10:59:05 2015 +0300 Committer: vozerov-gridgain <voze...@gridgain.com> Committed: Thu Mar 5 10:59:05 2015 +0300 ---------------------------------------------------------------------- .../ignite/internal/util/IgniteUtils.java | 61 +++++++++++++++++++- 1 file changed, 60 insertions(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/42e94854/modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java ---------------------------------------------------------------------- diff --git a/modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java b/modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java index de71f59..6b12554 100644 --- a/modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java +++ b/modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java @@ -7431,6 +7431,66 @@ public abstract class IgniteUtils { * @param cls Object. * @param obj Object. * @param mtdName Field name. + * @param params Parameters. + * @return Field value. + * @throws IgniteCheckedException If static field with given name cannot be retreived. + */ + public static <T> T invoke(@Nullable Class<?> cls, @Nullable Object obj, String mtdName, + Object... params) throws IgniteCheckedException { + assert cls != null || obj != null; + assert mtdName != null; + + try { + for (Class<?> c = cls != null ? cls : obj.getClass(); cls != Object.class; cls = cls.getSuperclass()) { + Method[] mtds = c.getDeclaredMethods(); + + Method mtd = null; + + for (Method declaredMtd : c.getDeclaredMethods()) { + if (declaredMtd.getName().equals(mtdName)) { + if (mtd == null) + mtd = declaredMtd; + else + throw new IgniteCheckedException("Failed to invoke (ambigous method name) [mtdName=" + + mtdName + ", cls=" + cls + ']'); + } + } + + if (mtd == null) + continue; + + boolean accessible = mtd.isAccessible(); + + T res; + + try { + mtd.setAccessible(true); + + res = (T)mtd.invoke(obj, params); + } + finally { + if (!accessible) + mtd.setAccessible(false); + } + + return res; + } + } + catch (Exception e) { + throw new IgniteCheckedException("Failed to invoke [mtdName=" + mtdName + ", cls=" + cls + ']', + e); + } + + throw new IgniteCheckedException("Failed to invoke (method was not found) [mtdName=" + mtdName + + ", cls=" + cls + ']'); + } + + /** + * Invokes method. + * + * @param cls Object. + * @param obj Object. + * @param mtdName Field name. * @param paramTypes Parameter types. * @param params Parameters. * @return Field value. @@ -7478,7 +7538,6 @@ public abstract class IgniteUtils { ", cls=" + cls + ']'); } - /** * Gets property value. *
