distribute.java

用位视图实现磁盘的回收与分配 java+jsp

package xingxing;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class Distribute {
    private int cylinder[] = new int[640];// 柱面号
	private int track[] = new int[640];// 磁道号
	private int physics[] = new int[640];// 物理块号
	private int relative[] = new int[640];// 相对块号


	
	String FileName2 = "D:\\workspace\\OSDesign\\WebRoot\\myfile\\mydata2.dat";

	
	public void ddisk1(int test) {
		RunControl ds = new RunControl();
		int data2[][] = ds.readData();
		int k = 0;
		if (test != 0) {
			for (int i = 0; i < 40; i++) {
				for (int j = 0; j < 16; j++) {
					if (data2[i][j] == 0) {
						relative[k] = i * 16 + j;
						cylinder[k] = relative[k] / 16;
						track[k] = relative[k] % 16 / 4;
						physics[k] = relative[k] % 16 % 4;
						k++;
						data2[i][j] = 1;
						test--;
					}
					if (test == 0) {
						break;
					}
				}
				if (test == 0) {
					break;
				}
			}

		}
		try {
			FileWriter fw = new FileWriter(FileName2);
			for (int i = 0; i < 40; i++) {
				for (int j = 0; j < 16; j++) {
					fw.write(data2[i][j] + " ");
				}
				fw.write("\r\n");
			}
			fw.close();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}
	public void ddisk2(int test) {
		Distribute ds1 = new Distribute();
		int data2[][] = ds1.readData2();
		int k = 0;
		if (test != 0) {
			for (int i = 0; i < 40; i++) {
				for (int j = 0; j < 16; j++) {
					if (data2[i][j] == 0) {
						relative[k] = i * 16 + j;
						cylinder[k] = relative[k] / 16;
						track[k] = relative[k] % 16 / 4;
						physics[k] = relative[k] % 16 % 4;
						k++;
						data2[i][j] = 1;
						test--;
					}
					if (test == 0) {
						break;
					}
				}
				if (test == 0) {
					break;
				}
			}

		}
		try {
			FileWriter fw = new FileWriter(FileName2);
			for (int i = 0; i < 40; i++) {
				for (int j = 0; j < 16; j++) {
					fw.write(data2[i][j] + " ");
				}
				fw.write("\r\n");
			}
			fw.close();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}
    
	public int[][] readData2() {
		int data[][] = new int[40][16];
		int i = 0;
		int j = 0;
		try {
			FileReader fr = new FileReader(FileName2);
			BufferedReader br = new BufferedReader(fr);
			String line = null;
			do {
				line = br.readLine();
				String d[] = line.split(" ");
				for (j = 0; j < d.length; j++) {
					data[i][j] = Integer.valueOf(d[j]);
				}
				i++;
			} while (line != null);
			br.close();
			fr.close();
		} catch (Exception e) {

		}
		return data;
	}
	

	public int[] getCylinder() {
		return cylinder;
	}

	public int[] getTrack() {
		return track;
	}

	public int[] getPhysics() {
		return physics;
	}

	public int[] getRelative() {
		return relative;
	}
}