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agents-flex-core/src/main/java/com/agentsflex/core/convert/ConvertService.java

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+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  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
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  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.
+ */
+package com.agentsflex.core.convert;
+
+import com.agentsflex.core.util.ArrayUtil;
+import com.agentsflex.core.util.StringUtil;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ConvertService {
+
+    private static final Map<Class<?>, IConverter<?>> CONVERTER_MAP = new HashMap<>();
+
+    static {
+        register(new BooleanConverter(), Boolean.class, boolean.class);
+        register(new IntegerConverter(), Integer.class, int.class);
+        register(new LongConverter(), Long.class, long.class);
+        register(new DoubleConverter(), Double.class, double.class);
+        register(new FloatConverter(), Float.class, float.class);
+        register(new ShortConverter(), Short.class, short.class);
+
+        register(new BigDecimalConverter(), BigDecimal.class);
+        register(new BigIntegerConverter(), BigInteger.class);
+        register(new ByteConverter(), byte.class);
+        register(new ByteArrayConverter(), byte[].class);
+
+
+    }
+
+    private static void register(IConverter<?> converter, Class<?>... classes) {
+        for (Class<?> clazz : classes) {
+            CONVERTER_MAP.put(clazz, converter);
+        }
+    }
+
+    public static Object convert(Object value, Class<?> toType) {
+        if (value == null || (value.getClass() == String.class && StringUtil.noText((String) value)
+            && toType != String.class)) {
+            return null;
+        }
+
+        if (value.getClass().isAssignableFrom(toType)) {
+            return value;
+        }
+
+        if (toType == Serializable.class && ArrayUtil.contains(value.getClass().getInterfaces(), Serializable.class)) {
+            return value;
+        }
+
+        String valueString = value.toString().trim();
+        if (valueString.isEmpty()) {
+            return null;
+        }
+
+        IConverter<?> converter = CONVERTER_MAP.get(toType);
+        if (converter != null) {
+            return converter.convert(valueString);
+        }
+
+        return null;
+    }
+
+    public static Object getPrimitiveDefaultValue(Class<?> paraClass) {
+        if (paraClass == int.class || paraClass == long.class || paraClass == float.class || paraClass == double.class) {
+            return 0;
+        } else if (paraClass == boolean.class) {
+            return Boolean.FALSE;
+        } else if (paraClass == short.class) {
+            return (short) 0;
+        } else if (paraClass == byte.class) {
+            return (byte) 0;
+        } else if (paraClass == char.class) {
+            return '\u0000';
+        } else {
+            //不存在这种类型
+            return null;
+        }
+    }
+
+
+}