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| package org.apache.hivemind.service; |
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| import java.lang.reflect.Method; |
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| public class MethodSignature |
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| { |
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| private int _hashCode = -1; |
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| private Class _returnType; |
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| private String _name; |
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| private Class[] _parameterTypes; |
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| private Class[] _exceptionTypes; |
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10799
| public MethodSignature(Class returnType, String name, Class[] parameterTypes,
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| Class[] exceptionTypes) |
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| { |
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| _returnType = returnType;
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| _name = name;
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| _parameterTypes = parameterTypes;
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| _exceptionTypes = exceptionTypes;
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| } |
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| public MethodSignature(Method m)
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| { |
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| this(m.getReturnType(), m.getName(), m.getParameterTypes(), m.getExceptionTypes());
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| } |
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| public Class[] getExceptionTypes()
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| { |
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| return _exceptionTypes;
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| } |
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| public String getName()
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| { |
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| return _name;
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| } |
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| public Class[] getParameterTypes()
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| { |
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| return _parameterTypes;
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| } |
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10689
| public Class getReturnType()
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| { |
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| return _returnType;
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| } |
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| public int hashCode()
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| { |
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| if (_hashCode == -1)
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| { |
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10693
| _hashCode = _returnType.hashCode();
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| _hashCode = 31 * _hashCode + _name.hashCode();
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| int count = count(_parameterTypes);
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| for (int i = 0; i < count; i++)
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| _hashCode = 31 * _hashCode + _parameterTypes[i].hashCode();
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| count = count(_exceptionTypes);
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| for (int i = 0; i < count; i++)
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| _hashCode = 31 * _hashCode + _exceptionTypes[i].hashCode();
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| } |
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| return _hashCode;
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| } |
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30451
| private static int count(Object[] array)
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| { |
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| return array == null ? 0 : array.length;
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| } |
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| public boolean equals(Object o)
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| { |
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| if (o == null || !(o instanceof MethodSignature))
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| return false;
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| MethodSignature ms = (MethodSignature) o;
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| if (_returnType != ms._returnType)
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| return false;
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| if (!_name.equals(ms._name))
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| return false;
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| if (mismatch(_parameterTypes, ms._parameterTypes))
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| return false;
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| return !mismatch(_exceptionTypes, ms._exceptionTypes);
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| } |
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| private boolean mismatch(Class[] a1, Class[] a2)
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| { |
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| int a1Count = count(a1);
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| int a2Count = count(a2);
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| if (a1Count != a2Count)
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| return true;
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| for (int i = 0; i < a1Count; i++)
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| { |
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| if (a1[i] != a2[i])
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| return true;
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| } |
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| return false;
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| } |
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| public String toString()
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| { |
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| StringBuffer buffer = new StringBuffer();
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| buffer.append(ClassFabUtils.getJavaClassName(_returnType));
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| buffer.append(" ");
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| buffer.append(_name);
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| buffer.append("(");
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| for (int i = 0; i < count(_parameterTypes); i++)
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| { |
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| if (i > 0)
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| buffer.append(", ");
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| buffer.append(ClassFabUtils.getJavaClassName(_parameterTypes[i]));
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| } |
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| buffer.append(")");
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| for (int i = 0; i < count(_exceptionTypes); i++)
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| { |
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| if (i == 0)
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| buffer.append(" throws ");
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| else |
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| buffer.append(", ");
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| buffer.append(_exceptionTypes[i].getName());
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| } |
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| return buffer.toString();
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| } |
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2472
| public String getUniqueId()
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| { |
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| StringBuffer buffer = new StringBuffer(_name);
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| buffer.append("(");
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| for (int i = 0; i < count(_parameterTypes); i++)
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| if (i > 0)
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| buffer.append(",");
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| buffer.append(ClassFabUtils.getJavaClassName(_parameterTypes[i]));
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| } |
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| buffer.append(")");
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| return buffer.toString();
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| } |
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| public boolean isOverridingSignatureOf(MethodSignature ms)
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| { |
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| if (_returnType != ms._returnType)
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| return false;
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| if (!_name.equals(ms._name))
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| return false;
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| if (mismatch(_parameterTypes, ms._parameterTypes))
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| return false;
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| return exceptionsEncompass(ms._exceptionTypes);
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| } |
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| private boolean exceptionsEncompass(Class[] otherExceptions)
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| { |
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| int ourCount = count(_exceptionTypes);
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| int otherCount = count(otherExceptions);
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| if (ourCount == 0)
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| return otherCount == 0;
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| boolean[] matched = new boolean[otherCount];
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| int unmatched = otherCount;
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| for (int i = 0; i < ourCount && unmatched > 0; i++)
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| { |
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| for (int j = 0; j < otherCount; j++)
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| { |
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| if (matched[j])
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| continue;
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| if (_exceptionTypes[i].isAssignableFrom(otherExceptions[j]))
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| { |
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| matched[j] = true;
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| unmatched--;
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| } |
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| } |
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| } |
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| return unmatched == 0;
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| } |
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| } |