1 files changed, 78 insertions, 0 deletions
diff --git a/sandbox/rfeng/samples.M2/mortgage/src/main/java/mortgage/LoanApprovalImpl.java b/sandbox/rfeng/samples.M2/mortgage/src/main/java/mortgage/LoanApprovalImpl.java
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@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 mortgage;
+
+import org.osoa.sca.annotations.Property;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.Scope;
+import org.osoa.sca.annotations.Service;
+
+/**
+ * An implementation of the LoanApproval service.
+ */
+@Scope("MODULE")
+@Service(LoanApproval.class)
+public class LoanApprovalImpl implements LoanApproval {
+
+    private CreditCheck creditCheck;
+    private RiskAssessment riskAssessment;
+    private MortgageCalculator mortgageCalculator;
+    private InterestRateQuote interestRateQuote;
+
+    private int minimumCreditScore = 650;
+
+    @Property(name = "minimumCreditScore")
+    public void setMinimumCreditScore(int minimumCreditScore) {
+        this.minimumCreditScore = minimumCreditScore;
+    }
+
+    @Reference
+    public void setCreditCheck(CreditCheck creditCheck) {
+        this.creditCheck = creditCheck;
+    }
+
+    @Reference
+    public void setInterestRateQuote(InterestRateQuote interestRateQuote) {
+        this.interestRateQuote = interestRateQuote;
+    }
+
+    @Reference
+    public void setMortgageCalculator(MortgageCalculator mortgageCalculator) {
+        this.mortgageCalculator = mortgageCalculator;
+    }
+
+    @Reference
+    public void setRiskAssessment(RiskAssessment riskAssessment) {
+        this.riskAssessment = riskAssessment;
+    }
+
+    /**
+     * @see mortgage.LoanApproval#approve(mortgage.Customer, double, int)
+     */
+    public boolean approve(Customer customer, double loanAmount, int years) {
+        int score = creditCheck.getCreditScore(customer.getSsn());
+        if (score < minimumCreditScore) {
+            return false;
+        }    
+        float rate = interestRateQuote.getRate(customer.getState(), loanAmount, years);
+        double monthlyPayment = mortgageCalculator.getMonthlyPayment(loanAmount, years, rate);
+        double ratio = monthlyPayment/customer.getMonthlyIncome();
+        return riskAssessment.assess(score, ratio);
+    }
+}