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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.
package com.landawn.abacus.util;
/*
* Copyright (C) 2019 HaiYang Li
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
public final class Try {
/** The t. */
private final T t;
/**
* Instantiates a new try.
*
* @param t
*/
Try(final T t) {
N.checkArgNotNull(t);
this.t = t;
}
/**
*
* @param
* @param t
* @return
*/
public static Try with(final T t) {
return new Try<>(t);
}
/**
*
* @param
* @param supplier
* @return
*/
public static Try with(final Throwables.Supplier supplier) {
try {
return new Try<>(supplier.get());
} catch (Exception e) {
throw N.toRuntimeException(e);
}
}
/**
*
* @param cmd
* @throws RuntimeException if some error happens
*/
public static void run(final Throwables.Runnable cmd) {
try {
cmd.run();
} catch (Exception e) {
throw N.toRuntimeException(e);
}
}
/**
*
* @param cmd
* @param actionOnError
*/
public static void run(final Throwables.Runnable cmd,
final com.landawn.abacus.util.function.Consumer actionOnError) {
N.checkArgNotNull(actionOnError);
try {
cmd.run();
} catch (Exception e) {
actionOnError.accept(e);
}
}
/**
*
* @param
* @param cmd
* @return
* @throws RuntimeException if some error happens
*/
public static R call(final java.util.concurrent.Callable cmd) {
try {
return cmd.call();
} catch (Exception e) {
throw N.toRuntimeException(e);
}
}
/**
*
* @param
* @param cmd
* @param actionOnError
* @return
*/
public static R call(final java.util.concurrent.Callable cmd, final com.landawn.abacus.util.function.Function actionOnError) {
N.checkArgNotNull(actionOnError);
try {
return cmd.call();
} catch (Exception e) {
return actionOnError.apply(e);
}
}
/**
*
* @param
* @param cmd
* @param supplier
* @return
*/
public static R call(final java.util.concurrent.Callable cmd, final com.landawn.abacus.util.function.Supplier supplier) {
N.checkArgNotNull(supplier);
try {
return cmd.call();
} catch (Exception e) {
return supplier.get();
}
}
/**
*
* @param
* @param cmd
* @param defaultValue
* @return
*/
public static R call(final java.util.concurrent.Callable cmd, final R defaultValue) {
try {
return cmd.call();
} catch (Exception e) {
return defaultValue;
}
}
/**
*
* @param
* @param cmd
* @param predicate
* @param supplier
* @return
* @throws RuntimeException if some error happens and predicate return false.
*/
public static R call(final java.util.concurrent.Callable cmd, final com.landawn.abacus.util.function.Predicate predicate,
final com.landawn.abacus.util.function.Supplier supplier) {
N.checkArgNotNull(predicate);
N.checkArgNotNull(supplier);
try {
return cmd.call();
} catch (Exception e) {
if (predicate.test(e)) {
return supplier.get();
} else {
throw N.toRuntimeException(e);
}
}
}
/**
*
* @param
* @param cmd
* @param predicate
* @param defaultValue
* @return
* @throws RuntimeException if some error happens and predicate return false.
*/
public static R call(final java.util.concurrent.Callable cmd, final com.landawn.abacus.util.function.Predicate predicate,
final R defaultValue) {
N.checkArgNotNull(predicate);
try {
return cmd.call();
} catch (Exception e) {
if (predicate.test(e)) {
return defaultValue;
} else {
throw N.toRuntimeException(e);
}
}
}
// /**
// *
// * @return
// */
// public T val() {
// return t;
// }
/**
*
* @param cmd
*/
public void run(final Throwables.Consumer cmd) {
try {
cmd.accept(t);
} catch (Exception e) {
throw N.toRuntimeException(e);
} finally {
IOUtil.close(t);
}
}
/**
*
* @param cmd
* @param actionOnError
*/
public void run(final Throwables.Consumer cmd,
final com.landawn.abacus.util.function.Consumer actionOnError) {
N.checkArgNotNull(actionOnError);
try {
cmd.accept(t);
} catch (Exception e) {
actionOnError.accept(e);
} finally {
IOUtil.close(t);
}
}
/**
*
* @param
* @param cmd
* @return
*/
public R call(final Throwables.Function cmd) {
try {
return cmd.apply(t);
} catch (Exception e) {
throw N.toRuntimeException(e);
} finally {
IOUtil.close(t);
}
}
/**
*
* @param
* @param cmd
* @param actionOnError
* @return
*/
public R call(final Throwables.Function cmd,
final com.landawn.abacus.util.function.Function actionOnError) {
N.checkArgNotNull(actionOnError);
try {
return cmd.apply(t);
} catch (Exception e) {
return actionOnError.apply(e);
} finally {
IOUtil.close(t);
}
}
/**
*
* @param
* @param cmd
* @param supplier
* @return
*/
public R call(final Throwables.Function cmd, final com.landawn.abacus.util.function.Supplier supplier) {
N.checkArgNotNull(supplier);
try {
return cmd.apply(t);
} catch (Exception e) {
return supplier.get();
} finally {
IOUtil.close(t);
}
}
/**
*
* @param
* @param cmd
* @param defaultValue
* @return
*/
public R call(final Throwables.Function cmd, final R defaultValue) {
try {
return cmd.apply(t);
} catch (Exception e) {
return defaultValue;
} finally {
IOUtil.close(t);
}
}
/**
*
* @param
* @param cmd
* @param predicate
* @param supplier
* @return
*/
public R call(final Throwables.Function cmd,
final com.landawn.abacus.util.function.Predicate predicate, final com.landawn.abacus.util.function.Supplier supplier) {
N.checkArgNotNull(predicate);
N.checkArgNotNull(supplier);
try {
return cmd.apply(t);
} catch (Exception e) {
if (predicate.test(e)) {
return supplier.get();
} else {
throw N.toRuntimeException(e);
}
} finally {
IOUtil.close(t);
}
}
/**
*
* @param
* @param cmd
* @param predicate
* @param defaultValue
* @return
*/
public R call(final Throwables.Function cmd,
final com.landawn.abacus.util.function.Predicate predicate, final R defaultValue) {
N.checkArgNotNull(predicate);
try {
return cmd.apply(t);
} catch (Exception e) {
if (predicate.test(e)) {
return defaultValue;
} else {
throw N.toRuntimeException(e);
}
} finally {
IOUtil.close(t);
}
}
}
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