com.aliyuncs.v5.http.UserAgentConfig Maven / Gradle / Ivy

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package com.aliyuncs.v5.http;

import com.aliyuncs.v5.CoreMessage;
import com.aliyuncs.v5.utils.StringUtils;

import java.util.*;

public class UserAgentConfig {

    static {
        Properties sysProps = System.getProperties();
        DEFAULT_MESSAGE = String.format("AlibabaCloud (%s; %s) Java/%s %s/%s", sysProps.getProperty("os.name"), sysProps
                .getProperty("os.arch"), sysProps.getProperty("java.runtime.version"), "Core", CoreMessage.coreVersion);
    }

    private static String DEFAULT_MESSAGE;
    private List excludeList = new ArrayList();
    private final Map userAgents = new LinkedHashMap();

    public UserAgentConfig() {
        excludeList.add("java");
        excludeList.add("Core");
    }

    public static String getDefaultMessage() {
        return DEFAULT_MESSAGE;
    }

    public void append(String key, String value) {
        if (StringUtils.isEmpty(key) || StringUtils.isEmpty(value)) {
            return;
        }
        if (excludeList.contains(key.toLowerCase())) {
            return;
        }
        this.userAgents.put(key, value);
    }

    public Map getSysUserAgentsMap() {
        return Collections.unmodifiableMap(this.userAgents);
    }

    public static String resolve(UserAgentConfig requestConfig, UserAgentConfig clientConfig) {
        Map finalMap = new LinkedHashMap();
        if (clientConfig != null && clientConfig.getSysUserAgentsMap().size() > 0) {
            finalMap.putAll(clientConfig.getSysUserAgentsMap());
        }
        if (requestConfig != null && requestConfig.getSysUserAgentsMap().size() > 0) {
            finalMap.putAll(requestConfig.getSysUserAgentsMap());
        }
        StringBuilder agents = new StringBuilder(DEFAULT_MESSAGE);
        for (Map.Entry entry : finalMap.entrySet()) {
            agents.append(" ");
            agents.append(entry.getKey());
            agents.append("/");
            agents.append(entry.getValue());
        }
        return agents.toString();
    }
}