Examples with Parameter java.lang.reflect.Parameter used on opensource projects

Example 61 with Parameter

use of java.lang.reflect.Parameter in project springframework-source-5.1.x by wb02125055.

the class StandardReflectionParameterNameDiscoverer method getParameterNames.

@Nullable
private String[] getParameterNames(Parameter[] parameters) {
    String[] parameterNames = new String[parameters.length];
    for (int i = 0; i < parameters.length; i++) {
        Parameter param = parameters[i];
        if (!param.isNamePresent()) {
            return null;
        }
        parameterNames[i] = param.getName();
    }
    return parameterNames;
}

Example 62 with Parameter

use of java.lang.reflect.Parameter in project springframework-source-5.1.x by wb02125055.

the class MethodParameter method findParameterIndex.

protected static int findParameterIndex(Parameter parameter) {
    Executable executable = parameter.getDeclaringExecutable();
    Parameter[] allParams = executable.getParameters();
    // Try first with identity checks for greater performance.
    for (int i = 0; i < allParams.length; i++) {
        if (parameter == allParams[i]) {
            return i;
        }
    }
    // conditions while invoking java.lang.reflect.Executable.getParameters().
    for (int i = 0; i < allParams.length; i++) {
        if (parameter.equals(allParams[i])) {
            return i;
        }
    }
    throw new IllegalArgumentException("Given parameter [" + parameter + "] does not match any parameter in the declaring executable");
}

Example 63 with Parameter

use of java.lang.reflect.Parameter in project springframework-source-5.1.x by wb02125055.

the class MethodParameter method getParameter.

/**
 * Return the {@link Parameter} descriptor for method/constructor parameter.
 * @since 5.0
 */
public Parameter getParameter() {
    if (this.parameterIndex < 0) {
        throw new IllegalStateException("Cannot retrieve Parameter descriptor for method return type");
    }
    Parameter parameter = this.parameter;
    if (parameter == null) {
        parameter = getExecutable().getParameters()[this.parameterIndex];
        this.parameter = parameter;
    }
    return parameter;
}

Example 64 with Parameter

use of java.lang.reflect.Parameter in project VMF by miho.

the class DelegationInfo method newInstance.

public static DelegationInfo newInstance(Model model, Method m, DelegationInfo constructorDelegationInfo) {
    DelegateTo delegation = m.getAnnotation(DelegateTo.class);
    String className = delegation == null ? (constructorDelegationInfo == null ? "" : constructorDelegationInfo.fullTypeName) : delegation.className();
    // if(delegation==null) {
    // return null;
    // }
    List<String> paramTypes = new ArrayList<>(m.getParameters().length);
    List<String> paramNames = new ArrayList<>(m.getParameters().length);
    boolean delegated = !m.getName().startsWith("get") && !m.getName().startsWith("is");
    boolean varargs = m.isVarArgs();
    for (Parameter p : m.getParameters()) {
        paramTypes.add(TypeUtil.getTypeAsString(model, p.getType(), delegated, varargs));
        paramNames.add(p.getName());
    }
    Doc doc = m.getAnnotation(Doc.class);
    String customDocumentation;
    if (doc != null) {
        customDocumentation = doc.value();
    } else {
        customDocumentation = "";
    }
    return newInstance(className, m.getName(), TypeUtil.getReturnTypeAsString(model, m), paramTypes, paramNames, false, customDocumentation);
}

Example 65 with Parameter

use of java.lang.reflect.Parameter in project quarkus by quarkusio.

the class GenerateAllLogUsages method main.

public static void main(String[] args) {
    println("package io.quarkus.logging;");
    println("");
    println("// generated by GenerateAllLogUsages, don't update manually");
    println("public class GeneratedBean {");
    println("    public void testLogging() {");
    Arrays.stream(Log.class.getDeclaredMethods()).filter(method -> Modifier.isPublic(method.getModifiers())).sorted(Comparator.comparing(Method::getName).thenComparingInt(Method::getParameterCount)).forEach(method -> {
        Parameter[] parameters = method.getParameters();
        String[] arguments = new String[method.getParameterCount()];
        for (int i = 0; i < parameters.length; i++) {
            Parameter parameter = parameters[i];
            String argument;
            if (parameter.getType() == Object.class && "message".equals(parameter.getName())) {
                argument = "\"foobar\"";
            } else if (parameter.getType() == Object.class && (parameter.getName().startsWith("param") || parameter.getName().startsWith("arg"))) {
                argument = "new Object()";
            } else if (parameter.getType() == Object[].class && "params".equals(parameter.getName())) {
                argument = "new Object[] {}";
            } else if (parameter.getType() == String.class && "loggerFqcn".equals(parameter.getName())) {
                argument = "\"io.quarkus.logging.GeneratedBean\"";
            } else if (parameter.getType() == String.class && "format".equals(parameter.getName())) {
                argument = "\"foobar\"";
            } else if (parameter.getType() == int.class) {
                argument = "13";
            } else if (parameter.getType() == long.class) {
                argument = "42L";
            } else if (parameter.getType() == Throwable.class) {
                argument = "new NoStackTraceTestException()";
            } else if (parameter.getType() == Logger.Level.class) {
                argument = "org.jboss.logging.Logger.Level.INFO";
            } else {
                throw new RuntimeException("Couldn't generate argument value for parameter " + i + " of type " + method.getParameterTypes()[i] + ": " + method);
            }
            arguments[i] = argument;
        }
        println("        Log." + method.getName() + "(" + String.join(", ", arguments) + ");");
    });
    println("    }");
    println("}");
}