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catch ArrayIndexOutOfBoundsException and NumberFormatException

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This commit is contained in:
Doug MacEachern 2004-06-22 02:27:32 +00:00
parent 6ff4fa8435
commit 18c8735ce3
1 changed files with 35 additions and 5 deletions
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40
bindings/java/src/net/hyperic/sigar/SigarInvoker.java
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@ -141,7 +141,13 @@ public class SigarInvoker {
if (typeClass.isArray()) { if (typeClass.isArray()) {
this.typeIsArray = true; this.typeIsArray = true;
if (argIsArrayIdx) { if (argIsArrayIdx) {
this.arrayIdx = Integer.parseInt((String)args[0]); try {
this.arrayIdx = Integer.parseInt((String)args[0]);
} catch (NumberFormatException ne) {
String msg = getType() + ": '" +
args[0] + "' is not a number";
throw new SigarException(msg);
}
this.hasArrayIdx = true; this.hasArrayIdx = true;
} }
Class componentClass = typeClass.getComponentType(); Class componentClass = typeClass.getComponentType();
@ -186,6 +192,10 @@ public class SigarInvoker {
return invoke(args, attr); return invoke(args, attr);
} }
private String aobMsg(int idx, int length) {
return "Array index " + idx + " out of bounds " + length;
}
public Object invoke(Object[] args, String attr) public Object invoke(Object[] args, String attr)
throws SigarException { throws SigarException {
@ -219,7 +229,12 @@ public class SigarInvoker {
*/ */
if (this.typeIsArray) { if (this.typeIsArray) {
if (this.hasArrayIdx) { if (this.hasArrayIdx) {
typeObject = ((Object[])typeObject)[this.arrayIdx]; Object[] array = (Object[])typeObject;
if (this.arrayIdx >= array.length) {
throw new SigarException(aobMsg(this.arrayIdx,
array.length));
}
typeObject = array[this.arrayIdx];
} }
else { else {
int idx = getAttributeIndex(attr); int idx = getAttributeIndex(attr);
@ -228,11 +243,26 @@ public class SigarInvoker {
} }
switch (this.typeArrayType) { switch (this.typeArrayType) {
case ARRAY_TYPE_DOUBLE: case ARRAY_TYPE_DOUBLE:
return new Double(((double[])typeObject)[idx]); double[] d_array = (double[])typeObject;
if (idx >= d_array.length) {
throw new SigarException(aobMsg(idx,
d_array.length));
}
return new Double(d_array[idx]);
case ARRAY_TYPE_LONG: case ARRAY_TYPE_LONG:
return new Long(((long[])typeObject)[idx]); long[] l_array = (long[])typeObject;
if (idx >= l_array.length) {
throw new SigarException(aobMsg(idx,
l_array.length));
}
return new Long(l_array[idx]);
case ARRAY_TYPE_OBJECT: case ARRAY_TYPE_OBJECT:
return ((Object[])typeObject)[idx]; Object[] o_array = (Object[])typeObject;
if (idx >= o_array.length) {
throw new SigarException(aobMsg(idx,
o_array.length));
}
return o_array[idx];
} }
} }
} }