adding a possible reflection based set of client builders

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/BaseKubernetesClientBuilder.java

@@ -0,0 +1,75 @@
+/**
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+package io.fabric8.kubernetes.client;
+
+import io.fabric8.kubernetes.client.http.HttpClient;
+import io.fabric8.kubernetes.client.utils.Serialization;
+
+import java.io.InputStream;
+import java.lang.reflect.InvocationTargetException;
+
+public class BaseKubernetesClientBuilder<T extends BaseKubernetesClientBuilder<T>> {
+
+  private Config config;
+  private HttpClient.Factory factory;
+  private Class<KubernetesClient> clazz;
+
+  protected BaseKubernetesClientBuilder(String className) {
+    try {
+      this.clazz = (Class<KubernetesClient>) Class.forName(className);
+    } catch (ClassNotFoundException e) {
+      throw KubernetesClientException.launderThrowable(e);
+    }
+  }
+
+  public KubernetesClient build() {
+    if (config == null) {
+      config = new ConfigBuilder().build();
+    }
+    try {
+      if (factory == null) {
+        return clazz.getConstructor(Config.class).newInstance(config);
+      }
+      HttpClient client = factory.createHttpClient(config);
+      return clazz.getConstructor(HttpClient.class, Config.class).newInstance(client, config);
+    } catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException
+        | NoSuchMethodException | SecurityException e) {
+      throw KubernetesClientException.launderThrowable(e);
+    }
+  }
+
+  public BaseKubernetesClientBuilder<T> withConfig(Config config) {
+    this.config = config;
+    return this;
+  }
+
+  public BaseKubernetesClientBuilder<T> withConfig(String config) {
+    this.config = Serialization.unmarshal(config);
+    return this;
+  }
+
+  public BaseKubernetesClientBuilder<T> withConfig(InputStream config) {
+    this.config = Serialization.unmarshal(config);
+    return this;
+  }
+
+  public BaseKubernetesClientBuilder<T> withHttpClientFactory(HttpClient.Factory factory) {
+    this.factory = factory;
+    return this;
+  }
+
+}

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/KubernetesClientBuilder.java

@@ -0,0 +1,25 @@
+/**
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+package io.fabric8.kubernetes.client;
+
+public class KubernetesClientBuilder extends BaseKubernetesClientBuilder<KubernetesClientBuilder> {
+
+  public KubernetesClientBuilder() {
+    super("io.fabric8.kubernetes.client.DefaultKubernetesClient");
+  }
+
+}

openshift-client-api/src/main/java/io/fabric8/openshift/client/OpenShiftClientBuilder.java

@@ -0,0 +1,37 @@
+/**
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+package io.fabric8.openshift.client;
+
+import io.fabric8.kubernetes.client.BaseKubernetesClientBuilder;
+
+public class OpenShiftClientBuilder extends BaseKubernetesClientBuilder<OpenShiftClientBuilder> {
+
+  public OpenShiftClientBuilder() {
+    super("io.fabric8.openshift.client.DefaultOpenShiftClient");
+  }
+
+  public OpenShiftClientBuilder withOpenShiftConfig(OpenShiftConfig config) {
+    super.withConfig(config);
+    return this;
+  }
+
+  @Override
+  public OpenShiftClient build() {
+    return (OpenShiftClient)super.build();
+  }
+
+}